2016-10-29 17:37:42 +02:00
|
|
|
|
diff --git original-gcc/gcc/common/config/riscv/riscv-common.c gcc-6.3.0/gcc/common/config/riscv/riscv-common.c
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..50f1485f87a
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/common/config/riscv/riscv-common.c
|
|
|
|
|
@@ -0,0 +1,131 @@
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+/* Common hooks for RISC-V.
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ Copyright (C) 2016 Free Software Foundation, Inc.
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+GCC is free software; you can redistribute it and/or modify
|
|
|
|
|
+it under the terms of the GNU General Public License as published by
|
|
|
|
|
+the Free Software Foundation; either version 3, or (at your option)
|
|
|
|
|
+any later version.
|
|
|
|
|
+
|
|
|
|
|
+GCC is distributed in the hope that it will be useful,
|
|
|
|
|
+but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
+GNU General Public License for more details.
|
|
|
|
|
+
|
|
|
|
|
+You should have received a copy of the GNU General Public License
|
|
|
|
|
+along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+<http://www.gnu.org/licenses/>. */
|
|
|
|
|
+
|
|
|
|
|
+#include "config.h"
|
|
|
|
|
+#include "system.h"
|
|
|
|
|
+#include "coretypes.h"
|
|
|
|
|
+#include "tm.h"
|
|
|
|
|
+#include "common/common-target.h"
|
|
|
|
|
+#include "common/common-target-def.h"
|
|
|
|
|
+#include "opts.h"
|
|
|
|
|
+#include "flags.h"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#include "diagnostic-core.h"
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+/* Parse a RISC-V ISA string into an option mask. */
|
|
|
|
|
+
|
|
|
|
|
+static void
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+riscv_parse_arch_string (const char *isa, int *flags, location_t loc)
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+{
|
|
|
|
|
+ const char *p = isa;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (strncmp (p, "rv32", 4) == 0)
|
|
|
|
|
+ *flags &= ~MASK_64BIT, p += 4;
|
|
|
|
|
+ else if (strncmp (p, "rv64", 4) == 0)
|
|
|
|
|
+ *flags |= MASK_64BIT, p += 4;
|
|
|
|
|
+ else
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ error_at (loc, "-march=%s: ISA string must begin with rv32 or rv64", isa);
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ return;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (*p == 'g')
|
|
|
|
|
+ {
|
|
|
|
|
+ p++;
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ *flags |= MASK_MUL;
|
|
|
|
|
+ *flags |= MASK_ATOMIC;
|
|
|
|
|
+ *flags |= MASK_HARD_FLOAT;
|
|
|
|
|
+ *flags |= MASK_DOUBLE_FLOAT;
|
|
|
|
|
+ }
|
|
|
|
|
+ else if (*p == 'i')
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ {
|
|
|
|
|
+ p++;
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+
|
|
|
|
|
+ *flags &= ~MASK_MUL;
|
|
|
|
|
+ if (*p == 'm')
|
|
|
|
|
+ *flags |= MASK_MUL, p++;
|
|
|
|
|
+
|
|
|
|
|
+ *flags &= ~MASK_ATOMIC;
|
|
|
|
|
+ if (*p == 'a')
|
|
|
|
|
+ *flags |= MASK_ATOMIC, p++;
|
|
|
|
|
+
|
|
|
|
|
+ *flags &= ~(MASK_HARD_FLOAT | MASK_DOUBLE_FLOAT);
|
|
|
|
|
+ if (*p == 'f')
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ *flags |= MASK_HARD_FLOAT, p++;
|
|
|
|
|
+
|
|
|
|
|
+ if (*p == 'd')
|
|
|
|
|
+ {
|
|
|
|
|
+ *flags |= MASK_DOUBLE_FLOAT;
|
|
|
|
|
+ p++;
|
|
|
|
|
+ }
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ }
|
|
|
|
|
+ }
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ else
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ error_at (loc, "-march=%s: invalid ISA string", isa);
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ return;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ *flags &= ~MASK_RVC;
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (*p == 'c')
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ *flags |= MASK_RVC, p++;
|
|
|
|
|
+
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ if (*p)
|
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ error_at (loc, "-march=%s: unsupported ISA substring %qs", isa, p);
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ return;
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_HANDLE_OPTION. */
|
|
|
|
|
+
|
|
|
|
|
+static bool
|
|
|
|
|
+riscv_handle_option (struct gcc_options *opts,
|
|
|
|
|
+ struct gcc_options *opts_set ATTRIBUTE_UNUSED,
|
|
|
|
|
+ const struct cl_decoded_option *decoded,
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ location_t loc)
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+{
|
|
|
|
|
+ switch (decoded->opt_index)
|
|
|
|
|
+ {
|
|
|
|
|
+ case OPT_march_:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ riscv_parse_arch_string (decoded->arg, &opts->x_target_flags, loc);
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ return true;
|
|
|
|
|
+
|
|
|
|
|
+ default:
|
|
|
|
|
+ return true;
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_OPTION_OPTIMIZATION_TABLE. */
|
|
|
|
|
+static const struct default_options riscv_option_optimization_table[] =
|
|
|
|
|
+ {
|
|
|
|
|
+ { OPT_LEVELS_1_PLUS, OPT_fsection_anchors, NULL, 1 },
|
|
|
|
|
+ { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 },
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ { OPT_LEVELS_2_PLUS, OPT_free, NULL, 1 },
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ { OPT_LEVELS_NONE, 0, NULL, 0 }
|
|
|
|
|
+ };
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_OPTION_OPTIMIZATION_TABLE
|
|
|
|
|
+#define TARGET_OPTION_OPTIMIZATION_TABLE riscv_option_optimization_table
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_HANDLE_OPTION
|
|
|
|
|
+#define TARGET_HANDLE_OPTION riscv_handle_option
|
|
|
|
|
+
|
|
|
|
|
+struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;
|
2016-10-29 17:37:42 +02:00
|
|
|
|
diff --git original-gcc/gcc/config.gcc gcc-6.3.0/gcc/config.gcc
|
|
|
|
|
index bc389eb45e7..ddfa4dccb52 100644
|
|
|
|
|
--- original-gcc/gcc/config.gcc
|
|
|
|
|
+++ gcc-6.3.0/gcc/config.gcc
|
|
|
|
|
@@ -451,6 +451,10 @@ powerpc*-*-*)
|
|
|
|
|
esac
|
|
|
|
|
extra_options="${extra_options} g.opt fused-madd.opt rs6000/rs6000-tables.opt"
|
|
|
|
|
;;
|
|
|
|
|
+riscv*)
|
|
|
|
|
+ cpu_type=riscv
|
|
|
|
|
+ extra_objs="riscv-builtins.o riscv-c.o"
|
|
|
|
|
+ ;;
|
|
|
|
|
rs6000*-*-*)
|
|
|
|
|
extra_options="${extra_options} g.opt fused-madd.opt rs6000/rs6000-tables.opt"
|
|
|
|
|
;;
|
|
|
|
|
@@ -2016,6 +2020,34 @@ microblaze*-*-elf)
|
|
|
|
|
cxx_target_objs="${cxx_target_objs} microblaze-c.o"
|
|
|
|
|
tmake_file="${tmake_file} microblaze/t-microblaze"
|
|
|
|
|
;;
|
|
|
|
|
+riscv*-*-linux*)
|
|
|
|
|
+ tm_file="elfos.h gnu-user.h linux.h glibc-stdint.h ${tm_file} riscv/linux.h"
|
|
|
|
|
+ case "x${enable_multilib}" in
|
|
|
|
|
+ xno) ;;
|
|
|
|
|
+ xyes) tmake_file="${tmake_file} riscv/t-linux-multilib" ;;
|
|
|
|
|
+ *) echo "Unknown value for enable_multilib"; exit 1
|
|
|
|
|
+ esac
|
|
|
|
|
+ tmake_file="${tmake_file} riscv/t-riscv riscv/t-linux"
|
|
|
|
|
+ gnu_ld=yes
|
|
|
|
|
+ gas=yes
|
|
|
|
|
+ # Force .init_array support. The configure script cannot always
|
|
|
|
|
+ # automatically detect that GAS supports it, yet we require it.
|
|
|
|
|
+ gcc_cv_initfini_array=yes
|
|
|
|
|
+ ;;
|
|
|
|
|
+riscv*-*-elf*)
|
|
|
|
|
+ tm_file="elfos.h newlib-stdint.h ${tm_file} riscv/elf.h"
|
|
|
|
|
+ case "x${enable_multilib}" in
|
|
|
|
|
+ xno) ;;
|
|
|
|
|
+ xyes) tmake_file="${tmake_file} riscv/t-elf-multilib" ;;
|
|
|
|
|
+ *) echo "Unknown value for enable_multilib"; exit 1
|
|
|
|
|
+ esac
|
|
|
|
|
+ tmake_file="${tmake_file} riscv/t-riscv"
|
|
|
|
|
+ gnu_ld=yes
|
|
|
|
|
+ gas=yes
|
|
|
|
|
+ # Force .init_array support. The configure script cannot always
|
|
|
|
|
+ # automatically detect that GAS supports it, yet we require it.
|
|
|
|
|
+ gcc_cv_initfini_array=yes
|
|
|
|
|
+ ;;
|
|
|
|
|
mips*-*-netbsd*) # NetBSD/mips, either endian.
|
|
|
|
|
target_cpu_default="MASK_ABICALLS"
|
|
|
|
|
tm_file="elfos.h ${tm_file} mips/elf.h netbsd.h netbsd-elf.h mips/netbsd.h"
|
|
|
|
|
@@ -3939,6 +3971,70 @@ case "${target}" in
|
|
|
|
|
done
|
|
|
|
|
;;
|
|
|
|
|
|
|
|
|
|
+ riscv*-*-*)
|
|
|
|
|
+ supported_defaults="abi arch tune"
|
|
|
|
|
+
|
|
|
|
|
+ case "${target}" in
|
|
|
|
|
+ riscv32*) xlen=32 ;;
|
|
|
|
|
+ riscv64*) xlen=64 ;;
|
|
|
|
|
+ *) echo "Unsupported RISC-V target ${target}" 1>&2; exit 1 ;;
|
|
|
|
|
+ esac
|
|
|
|
|
+
|
|
|
|
|
+ # Infer arch from --with-arch, --target, and --with-abi.
|
|
|
|
|
+ case "${with_arch}" in
|
|
|
|
|
+ rv32i* | rv32g* | rv64i* | rv64g*)
|
|
|
|
|
+ # OK.
|
|
|
|
|
+ ;;
|
|
|
|
|
+ "")
|
|
|
|
|
+ # Infer XLEN, but otherwise assume GC.
|
|
|
|
|
+ case "${with_abi}" in
|
|
|
|
|
+ ilp32 | ilp32f | ilp32d) with_arch="rv32gc" ;;
|
|
|
|
|
+ lp64 | lp64f | lp64d) with_arch="rv64gc" ;;
|
|
|
|
|
+ *) with_arch="rv${xlen}gc" ;;
|
|
|
|
|
+ esac
|
|
|
|
|
+ ;;
|
|
|
|
|
+ *)
|
|
|
|
|
+ echo "--with-arch=${with_arch} is not supported. The argument must begin with rv32i, rv32g, rv64i, or rv64g." 1>&2
|
|
|
|
|
+ exit 1
|
|
|
|
|
+ ;;
|
|
|
|
|
+ esac
|
|
|
|
|
+
|
|
|
|
|
+ # Make sure --with-abi is valid. If it was not specified,
|
|
|
|
|
+ # pick a default based on the ISA, preferring soft-float
|
|
|
|
|
+ # unless the D extension is present.
|
|
|
|
|
+ case "${with_abi}" in
|
|
|
|
|
+ ilp32 | ilp32f | ilp32d | lp64 | lp64f | lp64d)
|
|
|
|
|
+ ;;
|
|
|
|
|
+ "")
|
|
|
|
|
+ case "${with_arch}" in
|
|
|
|
|
+ rv32*d* | rv32g*) with_abi=ilp32d ;;
|
|
|
|
|
+ rv32*) with_abi=ilp32 ;;
|
|
|
|
|
+ rv64*d* | rv64g*) with_abi=lp64d ;;
|
|
|
|
|
+ rv64*) with_abi=lp64 ;;
|
|
|
|
|
+ esac
|
|
|
|
|
+ ;;
|
|
|
|
|
+ *)
|
|
|
|
|
+ echo "--with-abi=${with_abi} is not supported" 1>&2
|
|
|
|
|
+ exit 1
|
|
|
|
|
+ ;;
|
|
|
|
|
+ esac
|
|
|
|
|
+
|
|
|
|
|
+ # Make sure ABI and ISA are compatible.
|
|
|
|
|
+ case "${with_abi},${with_arch}" in
|
|
|
|
|
+ ilp32,rv32* \
|
|
|
|
|
+ | ilp32f,rv32*f* | ilp32f,rv32g* \
|
|
|
|
|
+ | ilp32d,rv32*d* | ilp32d,rv32g* \
|
|
|
|
|
+ | lp64,rv64* \
|
|
|
|
|
+ | lp64f,rv64*f* | lp64f,rv64g* \
|
|
|
|
|
+ | lp64d,rv64*d* | lp64d,rv64g*)
|
|
|
|
|
+ ;;
|
|
|
|
|
+ *)
|
|
|
|
|
+ echo "--with-abi=${with_abi} is not supported for ISA ${with_arch}" 1>&2
|
|
|
|
|
+ exit 1
|
|
|
|
|
+ ;;
|
|
|
|
|
+ esac
|
|
|
|
|
+ ;;
|
|
|
|
|
+
|
|
|
|
|
mips*-*-*)
|
|
|
|
|
supported_defaults="abi arch arch_32 arch_64 float fpu nan fp_32 odd_spreg_32 tune tune_32 tune_64 divide llsc mips-plt synci lxc1-sxc1 madd4"
|
|
|
|
|
|
|
|
|
|
diff --git original-gcc/gcc/config/riscv/constraints.md gcc-6.3.0/gcc/config/riscv/constraints.md
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..ae93788e44a
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/constraints.md
|
|
|
|
|
@@ -0,0 +1,78 @@
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+;; Constraint definitions for RISC-V target.
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; Copyright (C) 2011-2017 Free Software Foundation, Inc.
|
|
|
|
|
+;; Contributed by Andrew Waterman (andrew@sifive.com).
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+;; Based on MIPS target for GNU compiler.
|
|
|
|
|
+;;
|
|
|
|
|
+;; This file is part of GCC.
|
|
|
|
|
+;;
|
|
|
|
|
+;; GCC is free software; you can redistribute it and/or modify
|
|
|
|
|
+;; it under the terms of the GNU General Public License as published by
|
|
|
|
|
+;; the Free Software Foundation; either version 3, or (at your option)
|
|
|
|
|
+;; any later version.
|
|
|
|
|
+;;
|
|
|
|
|
+;; GCC is distributed in the hope that it will be useful,
|
|
|
|
|
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
+;; GNU General Public License for more details.
|
|
|
|
|
+;;
|
|
|
|
|
+;; You should have received a copy of the GNU General Public License
|
|
|
|
|
+;; along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+;; <http://www.gnu.org/licenses/>.
|
|
|
|
|
+
|
|
|
|
|
+;; Register constraints
|
|
|
|
|
+
|
|
|
|
|
+(define_register_constraint "f" "TARGET_HARD_FLOAT ? FP_REGS : NO_REGS"
|
|
|
|
|
+ "A floating-point register (if available).")
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_register_constraint "j" "SIBCALL_REGS"
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ "@internal")
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; Avoid using register t0 for JALR's argument, because for some
|
|
|
|
|
+;; microarchitectures that is a return-address stack hint.
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+(define_register_constraint "l" "JALR_REGS"
|
|
|
|
|
+ "@internal")
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; General constraints
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+(define_constraint "I"
|
|
|
|
|
+ "An I-type 12-bit signed immediate."
|
|
|
|
|
+ (and (match_code "const_int")
|
|
|
|
|
+ (match_test "SMALL_OPERAND (ival)")))
|
|
|
|
|
+
|
|
|
|
|
+(define_constraint "J"
|
|
|
|
|
+ "Integer zero."
|
|
|
|
|
+ (and (match_code "const_int")
|
|
|
|
|
+ (match_test "ival == 0")))
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_constraint "K"
|
|
|
|
|
+ "A 5-bit unsigned immediate for CSR access instructions."
|
|
|
|
|
+ (and (match_code "const_int")
|
|
|
|
|
+ (match_test "IN_RANGE (ival, 0, 31)")))
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; Floating-point constant +0.0, used for FCVT-based moves when FMV is
|
|
|
|
|
+;; not available in RV32.
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+(define_constraint "G"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "@internal"
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ (and (match_code "const_double")
|
|
|
|
|
+ (match_test "op == CONST0_RTX (mode)")))
|
|
|
|
|
+
|
|
|
|
|
+(define_memory_constraint "A"
|
|
|
|
|
+ "An address that is held in a general-purpose register."
|
|
|
|
|
+ (and (match_code "mem")
|
|
|
|
|
+ (match_test "GET_CODE(XEXP(op,0)) == REG")))
|
|
|
|
|
+
|
|
|
|
|
+(define_constraint "S"
|
|
|
|
|
+ "@internal
|
|
|
|
|
+ A constant call address."
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (match_operand 0 "absolute_symbolic_operand"))
|
|
|
|
|
+
|
|
|
|
|
+(define_constraint "U"
|
|
|
|
|
+ "@internal
|
|
|
|
|
+ A PLT-indirect call address."
|
|
|
|
|
+ (match_operand 0 "plt_symbolic_operand"))
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+(define_constraint "T"
|
|
|
|
|
+ "@internal
|
|
|
|
|
+ A constant @code{move_operand}."
|
|
|
|
|
+ (and (match_operand 0 "move_operand")
|
|
|
|
|
+ (match_test "CONSTANT_P (op)")))
|
2016-10-29 17:37:42 +02:00
|
|
|
|
diff --git original-gcc/gcc/config/riscv/elf.h gcc-6.3.0/gcc/config/riscv/elf.h
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..391e59f49b9
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/elf.h
|
|
|
|
|
@@ -0,0 +1,35 @@
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+/* Target macros for riscv*-elf targets.
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ Copyright (C) 1994-2017 Free Software Foundation, Inc.
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+GCC is free software; you can redistribute it and/or modify
|
|
|
|
|
+it under the terms of the GNU General Public License as published by
|
|
|
|
|
+the Free Software Foundation; either version 3, or (at your option)
|
|
|
|
|
+any later version.
|
|
|
|
|
+
|
|
|
|
|
+GCC is distributed in the hope that it will be useful,
|
|
|
|
|
+but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
+GNU General Public License for more details.
|
|
|
|
|
+
|
|
|
|
|
+You should have received a copy of the GNU General Public License
|
|
|
|
|
+along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+<http://www.gnu.org/licenses/>. */
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define LINK_SPEC "\
|
|
|
|
|
+-melf" XLEN_SPEC "lriscv \
|
|
|
|
|
+%{shared}"
|
|
|
|
|
+
|
|
|
|
|
+/* Link against Newlib libraries, because the ELF backend assumes Newlib.
|
|
|
|
|
+ Handle the circular dependence between libc and libgloss. */
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+#undef LIB_SPEC
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define LIB_SPEC "--start-group -lc -lgloss --end-group"
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+#undef STARTFILE_SPEC
|
|
|
|
|
+#define STARTFILE_SPEC "crt0%O%s crtbegin%O%s"
|
|
|
|
|
+
|
|
|
|
|
+#undef ENDFILE_SPEC
|
|
|
|
|
+#define ENDFILE_SPEC "crtend%O%s"
|
|
|
|
|
+
|
|
|
|
|
+#define NO_IMPLICIT_EXTERN_C 1
|
2016-10-29 17:37:42 +02:00
|
|
|
|
diff --git original-gcc/gcc/config/riscv/generic.md gcc-6.3.0/gcc/config/riscv/generic.md
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..294c7ef729d
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/generic.md
|
2016-04-02 04:50:59 +02:00
|
|
|
|
@@ -0,0 +1,78 @@
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+;; Generic DFA-based pipeline description for RISC-V targets.
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; Copyright (C) 2011-2017 Free Software Foundation, Inc.
|
|
|
|
|
+;; Contributed by Andrew Waterman (andrew@sifive.com).
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+;; Based on MIPS target for GNU compiler.
|
|
|
|
|
+
|
|
|
|
|
+;; This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+;; GCC is free software; you can redistribute it and/or modify it
|
|
|
|
|
+;; under the terms of the GNU General Public License as published
|
|
|
|
|
+;; by the Free Software Foundation; either version 3, or (at your
|
|
|
|
|
+;; option) any later version.
|
|
|
|
|
+
|
|
|
|
|
+;; GCC is distributed in the hope that it will be useful, but WITHOUT
|
|
|
|
|
+;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
|
|
|
+;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
|
|
|
|
|
+;; License for more details.
|
|
|
|
|
+
|
|
|
|
|
+;; You should have received a copy of the GNU General Public License
|
|
|
|
|
+;; along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+;; <http://www.gnu.org/licenses/>.
|
|
|
|
|
+
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+(define_automaton "pipe0")
|
|
|
|
|
+(define_cpu_unit "alu" "pipe0")
|
|
|
|
|
+(define_cpu_unit "imuldiv" "pipe0")
|
|
|
|
|
+(define_cpu_unit "fdivsqrt" "pipe0")
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+(define_insn_reservation "generic_alu" 1
|
|
|
|
|
+ (eq_attr "type" "unknown,const,arith,shift,slt,multi,nop,logical,move")
|
|
|
|
|
+ "alu")
|
|
|
|
|
+
|
|
|
|
|
+(define_insn_reservation "generic_load" 3
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ (eq_attr "type" "load,fpload")
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ "alu")
|
|
|
|
|
+
|
|
|
|
|
+(define_insn_reservation "generic_store" 1
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ (eq_attr "type" "store,fpstore")
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ "alu")
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+(define_insn_reservation "generic_xfer" 3
|
|
|
|
|
+ (eq_attr "type" "mfc,mtc,fcvt,fmove,fcmp")
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ "alu")
|
|
|
|
|
+
|
|
|
|
|
+(define_insn_reservation "generic_branch" 1
|
|
|
|
|
+ (eq_attr "type" "branch,jump,call")
|
|
|
|
|
+ "alu")
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+(define_insn_reservation "generic_imul" 10
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ (eq_attr "type" "imul")
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ "imuldiv*10")
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+(define_insn_reservation "generic_idivsi" 34
|
|
|
|
|
+ (and (eq_attr "type" "idiv")
|
|
|
|
|
+ (eq_attr "mode" "SI"))
|
|
|
|
|
+ "imuldiv*34")
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+(define_insn_reservation "generic_idivdi" 66
|
|
|
|
|
+ (and (eq_attr "type" "idiv")
|
|
|
|
|
+ (eq_attr "mode" "DI"))
|
|
|
|
|
+ "imuldiv*66")
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+(define_insn_reservation "generic_fmul_single" 5
|
|
|
|
|
+ (and (eq_attr "type" "fadd,fmul,fmadd")
|
|
|
|
|
+ (eq_attr "mode" "SF"))
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ "alu")
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+(define_insn_reservation "generic_fmul_double" 7
|
|
|
|
|
+ (and (eq_attr "type" "fadd,fmul,fmadd")
|
|
|
|
|
+ (eq_attr "mode" "DF"))
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ "alu")
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+(define_insn_reservation "generic_fdiv" 20
|
|
|
|
|
+ (eq_attr "type" "fdiv")
|
|
|
|
|
+ "fdivsqrt*20")
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+(define_insn_reservation "generic_fsqrt" 25
|
|
|
|
|
+ (eq_attr "type" "fsqrt")
|
|
|
|
|
+ "fdivsqrt*25")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
diff --git original-gcc/gcc/config/riscv/linux.h gcc-6.3.0/gcc/config/riscv/linux.h
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..0c622118056
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/linux.h
|
|
|
|
|
@@ -0,0 +1,40 @@
|
|
|
|
|
+/* Definitions for RISC-V GNU/Linux systems with ELF format.
|
|
|
|
|
+ Copyright (C) 1998-2017 Free Software Foundation, Inc.
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+This file is part of GCC.
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+GCC is free software; you can redistribute it and/or modify
|
|
|
|
|
+it under the terms of the GNU General Public License as published by
|
|
|
|
|
+the Free Software Foundation; either version 3, or (at your option)
|
|
|
|
|
+any later version.
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+GCC is distributed in the hope that it will be useful,
|
|
|
|
|
+but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
+GNU General Public License for more details.
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+You should have received a copy of the GNU General Public License
|
|
|
|
|
+along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+<http://www.gnu.org/licenses/>. */
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define TARGET_OS_CPP_BUILTINS() \
|
|
|
|
|
+ do { \
|
|
|
|
|
+ GNU_USER_TARGET_OS_CPP_BUILTINS(); \
|
|
|
|
|
+ } while (0)
|
|
|
|
|
+
|
|
|
|
|
+#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-riscv" XLEN_SPEC "-" ABI_SPEC ".so.1"
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Because RISC-V only has word-sized atomics, it requries libatomic where
|
|
|
|
|
+ others do not. So link libatomic by default, as needed. */
|
|
|
|
|
+#undef LIB_SPEC
|
|
|
|
|
+#define LIB_SPEC GNU_USER_TARGET_LIB_SPEC \
|
|
|
|
|
+ " %{pthread:" LD_AS_NEEDED_OPTION " -latomic " LD_NO_AS_NEEDED_OPTION "}" \
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
|
|
|
|
+#define LINK_SPEC "\
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+-melf" XLEN_SPEC "lriscv \
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+%{shared} \
|
|
|
|
|
+ %{!shared: \
|
|
|
|
|
+ %{!static: \
|
|
|
|
|
+ %{rdynamic:-export-dynamic} \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ -dynamic-linker " GNU_USER_DYNAMIC_LINKER "} \
|
|
|
|
|
+ %{static:-static}}"
|
|
|
|
|
diff --git original-gcc/gcc/config/riscv/multilib-generator gcc-6.3.0/gcc/config/riscv/multilib-generator
|
|
|
|
|
new file mode 100755
|
|
|
|
|
index 00000000000..b7ebf7bed41
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/multilib-generator
|
|
|
|
|
@@ -0,0 +1,65 @@
|
|
|
|
|
+#!/usr/bin/env python
|
|
|
|
|
+
|
|
|
|
|
+# RISC-V multilib list generator.
|
|
|
|
|
+# Copyright (C) 2011-2017 Free Software Foundation, Inc.
|
|
|
|
|
+# Contributed by Andrew Waterman (andrew@sifive.com).
|
|
|
|
|
+#
|
|
|
|
|
+# This file is part of GCC.
|
|
|
|
|
+#
|
|
|
|
|
+# GCC is free software; you can redistribute it and/or modify
|
|
|
|
|
+# it under the terms of the GNU General Public License as published by
|
|
|
|
|
+# the Free Software Foundation; either version 3, or (at your option)
|
|
|
|
|
+# any later version.
|
|
|
|
|
+#
|
|
|
|
|
+# GCC is distributed in the hope that it will be useful,
|
|
|
|
|
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
+# GNU General Public License for more details.
|
|
|
|
|
+#
|
|
|
|
|
+# You should have received a copy of the GNU General Public License
|
|
|
|
|
+# along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+# <http://www.gnu.org/licenses/>.
|
|
|
|
|
+
|
|
|
|
|
+# Each argument to this script is of the form
|
|
|
|
|
+# <primary arch>-<abi>-<additional arches>-<extensions>
|
|
|
|
|
+# For example,
|
|
|
|
|
+# rv32imafd-ilp32d-rv32g-c,v
|
|
|
|
|
+# means that, in addition to rv32imafd, these configurations can also use the
|
|
|
|
|
+# rv32imafd-ilp32d libraries: rv32imafdc, rv32imafdv, rv32g, rv32gc, rv32gv
|
|
|
|
|
+
|
|
|
|
|
+from __future__ import print_function
|
|
|
|
|
+import sys
|
|
|
|
|
+import collections
|
|
|
|
|
+
|
|
|
|
|
+arches = collections.OrderedDict()
|
|
|
|
|
+abis = collections.OrderedDict()
|
|
|
|
|
+required = []
|
|
|
|
|
+reuse = []
|
|
|
|
|
+
|
|
|
|
|
+for cfg in sys.argv[1:]:
|
|
|
|
|
+ (arch, abi, extra, ext) = cfg.split('-')
|
|
|
|
|
+ arches[arch] = 1
|
|
|
|
|
+ abis[abi] = 1
|
|
|
|
|
+ extra = list(filter(None, extra.split(',')))
|
|
|
|
|
+ ext = list(filter(None, ext.split(',')))
|
|
|
|
|
+ alts = sum([[x] + [x + y for y in ext] for x in [arch] + extra], [])
|
|
|
|
|
+ alts = alts + [x.replace('imafd', 'g') for x in alts if 'imafd' in x]
|
|
|
|
|
+ for alt in alts[1:]:
|
|
|
|
|
+ arches[alt] = 1
|
|
|
|
|
+ reuse.append('march.%s/mabi.%s=march.%s/mabi.%s' % (arch, abi, alt, abi))
|
|
|
|
|
+ required.append('march=%s/mabi=%s' % (arch, abi))
|
|
|
|
|
+
|
|
|
|
|
+arch_options = '/'.join(['march=%s' % x for x in arches.keys()])
|
|
|
|
|
+arch_dirnames = ' '.join(arches.keys())
|
|
|
|
|
+
|
|
|
|
|
+abi_options = '/'.join(['mabi=%s' % x for x in abis.keys()])
|
|
|
|
|
+abi_dirnames = ' '.join(abis.keys())
|
|
|
|
|
+
|
|
|
|
|
+prog = sys.argv[0].split('/')[-1]
|
|
|
|
|
+print('# This file was generated by %s with the command:' % prog)
|
|
|
|
|
+print('# %s' % ' '.join(sys.argv))
|
|
|
|
|
+
|
|
|
|
|
+print('MULTILIB_OPTIONS = %s %s' % (arch_options, abi_options))
|
|
|
|
|
+print('MULTILIB_DIRNAMES = %s %s' % (arch_dirnames, abi_dirnames))
|
|
|
|
|
+print('MULTILIB_REQUIRED = %s' % ' '.join(required))
|
|
|
|
|
+print('MULTILIB_REUSE = %s' % ' '.join(reuse))
|
|
|
|
|
diff --git original-gcc/gcc/config/riscv/peephole.md gcc-6.3.0/gcc/config/riscv/peephole.md
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..7e644e01759
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/peephole.md
|
|
|
|
|
@@ -0,0 +1,40 @@
|
|
|
|
|
+;; Peephole optimizations for RISC-V for GNU compiler.
|
|
|
|
|
+;; Copyright (C) 2011-2017 Free Software Foundation, Inc.
|
|
|
|
|
+;; Contributed by Andrew Waterman (andrew@sifive.com).
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; This file is part of GCC.
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; GCC is free software; you can redistribute it and/or modify
|
|
|
|
|
+;; it under the terms of the GNU General Public License as published by
|
|
|
|
|
+;; the Free Software Foundation; either version 3, or (at your option)
|
|
|
|
|
+;; any later version.
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; GCC is distributed in the hope that it will be useful,
|
|
|
|
|
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
+;; GNU General Public License for more details.
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; You should have received a copy of the GNU General Public License
|
|
|
|
|
+;; along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+;; <http://www.gnu.org/licenses/>.
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+;; Simplify (unsigned long)(unsigned int)a << const
|
|
|
|
|
+(define_peephole2
|
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand")
|
|
|
|
|
+ (ashift:DI (match_operand:DI 1 "register_operand")
|
|
|
|
|
+ (match_operand 2 "const_int_operand")))
|
|
|
|
|
+ (set (match_operand:DI 3 "register_operand")
|
|
|
|
|
+ (lshiftrt:DI (match_dup 0) (match_dup 2)))
|
|
|
|
|
+ (set (match_operand:DI 4 "register_operand")
|
|
|
|
|
+ (ashift:DI (match_dup 3) (match_operand 5 "const_int_operand")))]
|
|
|
|
|
+ "TARGET_64BIT
|
|
|
|
|
+ && INTVAL (operands[5]) < INTVAL (operands[2])
|
|
|
|
|
+ && (REGNO (operands[3]) == REGNO (operands[4])
|
|
|
|
|
+ || peep2_reg_dead_p (3, operands[3]))"
|
|
|
|
|
+ [(set (match_dup 0)
|
|
|
|
|
+ (ashift:DI (match_dup 1) (match_dup 2)))
|
|
|
|
|
+ (set (match_dup 4)
|
|
|
|
|
+ (lshiftrt:DI (match_dup 0) (match_operand 5)))]
|
|
|
|
|
+{
|
|
|
|
|
+ operands[5] = GEN_INT (INTVAL (operands[2]) - INTVAL (operands[5]));
|
|
|
|
|
+})
|
2016-10-29 17:37:42 +02:00
|
|
|
|
diff --git original-gcc/gcc/config/riscv/pic.md gcc-6.3.0/gcc/config/riscv/pic.md
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..6a29ead32d3
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/pic.md
|
|
|
|
|
@@ -0,0 +1,85 @@
|
|
|
|
|
+;; PIC codegen for RISC-V for GNU compiler.
|
|
|
|
|
+;; Copyright (C) 2011-2017 Free Software Foundation, Inc.
|
|
|
|
|
+;; Contributed by Andrew Waterman (andrew@sifive.com).
|
|
|
|
|
+
|
|
|
|
|
+;; This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+;; GCC is free software; you can redistribute it and/or modify
|
|
|
|
|
+;; it under the terms of the GNU General Public License as published by
|
|
|
|
|
+;; the Free Software Foundation; either version 3, or (at your option)
|
|
|
|
|
+;; any later version.
|
|
|
|
|
+
|
|
|
|
|
+;; GCC is distributed in the hope that it will be useful,
|
|
|
|
|
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
+;; GNU General Public License for more details.
|
|
|
|
|
+
|
|
|
|
|
+;; You should have received a copy of the GNU General Public License
|
|
|
|
|
+;; along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+;; <http://www.gnu.org/licenses/>.
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+;; Simplify PIC loads to static variables.
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; These should go away once we figure out how to emit auipc discretely.
|
|
|
|
|
+
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+(define_insn "*local_pic_load<mode>"
|
|
|
|
|
+ [(set (match_operand:ANYI 0 "register_operand" "=r")
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ (mem:ANYI (match_operand 1 "absolute_symbolic_operand" "")))]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "USE_LOAD_ADDRESS_MACRO (operands[1])"
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ "<load>\t%0,%1"
|
|
|
|
|
+ [(set (attr "length") (const_int 8))])
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+(define_insn "*local_pic_load<mode>"
|
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ (mem:ANYF (match_operand 1 "absolute_symbolic_operand" "")))
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (clobber (match_scratch:DI 2 "=r"))]
|
|
|
|
|
+ "TARGET_HARD_FLOAT && TARGET_64BIT && USE_LOAD_ADDRESS_MACRO (operands[1])"
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ "<load>\t%0,%1,%2"
|
|
|
|
|
+ [(set (attr "length") (const_int 8))])
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+(define_insn "*local_pic_load<mode>"
|
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ (mem:ANYF (match_operand 1 "absolute_symbolic_operand" "")))
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (clobber (match_scratch:SI 2 "=r"))]
|
|
|
|
|
+ "TARGET_HARD_FLOAT && !TARGET_64BIT && USE_LOAD_ADDRESS_MACRO (operands[1])"
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ "<load>\t%0,%1,%2"
|
|
|
|
|
+ [(set (attr "length") (const_int 8))])
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+(define_insn "*local_pic_loadu<mode>"
|
|
|
|
|
+ [(set (match_operand:SUPERQI 0 "register_operand" "=r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (zero_extend:SUPERQI (mem:SUBX (match_operand 1 "absolute_symbolic_operand" ""))))]
|
|
|
|
|
+ "USE_LOAD_ADDRESS_MACRO (operands[1])"
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ "<load>u\t%0,%1"
|
|
|
|
|
+ [(set (attr "length") (const_int 8))])
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+(define_insn "*local_pic_storedi<mode>"
|
|
|
|
|
+ [(set (mem:ANYI (match_operand 0 "absolute_symbolic_operand" ""))
|
|
|
|
|
+ (match_operand:ANYI 1 "reg_or_0_operand" "rJ"))
|
|
|
|
|
+ (clobber (match_scratch:DI 2 "=&r"))]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "TARGET_64BIT && USE_LOAD_ADDRESS_MACRO (operands[0])"
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ "<store>\t%z1,%0,%2"
|
|
|
|
|
+ [(set (attr "length") (const_int 8))])
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+(define_insn "*local_pic_storesi<mode>"
|
|
|
|
|
+ [(set (mem:ANYI (match_operand 0 "absolute_symbolic_operand" ""))
|
|
|
|
|
+ (match_operand:ANYI 1 "reg_or_0_operand" "rJ"))
|
|
|
|
|
+ (clobber (match_scratch:SI 2 "=&r"))]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "!TARGET_64BIT && USE_LOAD_ADDRESS_MACRO (operands[0])"
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ "<store>\t%z1,%0,%2"
|
|
|
|
|
+ [(set (attr "length") (const_int 8))])
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+(define_insn "*local_pic_storedi<mode>"
|
|
|
|
|
+ [(set (mem:ANYF (match_operand 0 "absolute_symbolic_operand" ""))
|
|
|
|
|
+ (match_operand:ANYF 1 "register_operand" "f"))
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (clobber (match_scratch:DI 2 "=r"))]
|
|
|
|
|
+ "TARGET_HARD_FLOAT && TARGET_64BIT && USE_LOAD_ADDRESS_MACRO (operands[0])"
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ "<store>\t%1,%0,%2"
|
|
|
|
|
+ [(set (attr "length") (const_int 8))])
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+(define_insn "*local_pic_storesi<mode>"
|
|
|
|
|
+ [(set (mem:ANYF (match_operand 0 "absolute_symbolic_operand" ""))
|
|
|
|
|
+ (match_operand:ANYF 1 "register_operand" "f"))
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (clobber (match_scratch:SI 2 "=r"))]
|
|
|
|
|
+ "TARGET_HARD_FLOAT && !TARGET_64BIT && USE_LOAD_ADDRESS_MACRO (operands[0])"
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ "<store>\t%1,%0,%2"
|
|
|
|
|
+ [(set (attr "length") (const_int 8))])
|
2016-10-29 17:37:42 +02:00
|
|
|
|
diff --git original-gcc/gcc/config/riscv/predicates.md gcc-6.3.0/gcc/config/riscv/predicates.md
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..854af1481f7
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/predicates.md
|
|
|
|
|
@@ -0,0 +1,180 @@
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+;; Predicate description for RISC-V target.
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; Copyright (C) 2011-2017 Free Software Foundation, Inc.
|
|
|
|
|
+;; Contributed by Andrew Waterman (andrew@sifive.com).
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+;; Based on MIPS target for GNU compiler.
|
|
|
|
|
+;;
|
|
|
|
|
+;; This file is part of GCC.
|
|
|
|
|
+;;
|
|
|
|
|
+;; GCC is free software; you can redistribute it and/or modify
|
|
|
|
|
+;; it under the terms of the GNU General Public License as published by
|
|
|
|
|
+;; the Free Software Foundation; either version 3, or (at your option)
|
|
|
|
|
+;; any later version.
|
|
|
|
|
+;;
|
|
|
|
|
+;; GCC is distributed in the hope that it will be useful,
|
|
|
|
|
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
+;; GNU General Public License for more details.
|
|
|
|
|
+;;
|
|
|
|
|
+;; You should have received a copy of the GNU General Public License
|
|
|
|
|
+;; along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+;; <http://www.gnu.org/licenses/>.
|
|
|
|
|
+
|
|
|
|
|
+(define_predicate "const_arith_operand"
|
|
|
|
|
+ (and (match_code "const_int")
|
|
|
|
|
+ (match_test "SMALL_OPERAND (INTVAL (op))")))
|
|
|
|
|
+
|
|
|
|
|
+(define_predicate "arith_operand"
|
|
|
|
|
+ (ior (match_operand 0 "const_arith_operand")
|
|
|
|
|
+ (match_operand 0 "register_operand")))
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_predicate "const_csr_operand"
|
|
|
|
|
+ (and (match_code "const_int")
|
|
|
|
|
+ (match_test "IN_RANGE (INTVAL (op), 0, 31)")))
|
|
|
|
|
+
|
|
|
|
|
+(define_predicate "csr_operand"
|
|
|
|
|
+ (ior (match_operand 0 "const_csr_operand")
|
|
|
|
|
+ (match_operand 0 "register_operand")))
|
|
|
|
|
+
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+(define_predicate "sle_operand"
|
|
|
|
|
+ (and (match_code "const_int")
|
|
|
|
|
+ (match_test "SMALL_OPERAND (INTVAL (op) + 1)")))
|
|
|
|
|
+
|
|
|
|
|
+(define_predicate "sleu_operand"
|
|
|
|
|
+ (and (match_operand 0 "sle_operand")
|
|
|
|
|
+ (match_test "INTVAL (op) + 1 != 0")))
|
|
|
|
|
+
|
|
|
|
|
+(define_predicate "const_0_operand"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (and (match_code "const_int,const_wide_int,const_double,const_vector")
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ (match_test "op == CONST0_RTX (GET_MODE (op))")))
|
|
|
|
|
+
|
|
|
|
|
+(define_predicate "reg_or_0_operand"
|
|
|
|
|
+ (ior (match_operand 0 "const_0_operand")
|
|
|
|
|
+ (match_operand 0 "register_operand")))
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+;; Only use branch-on-bit sequences when the mask is not an ANDI immediate.
|
|
|
|
|
+(define_predicate "branch_on_bit_operand"
|
|
|
|
|
+ (and (match_code "const_int")
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ (match_test "INTVAL (op) >= IMM_BITS - 1")))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+;; A legitimate CONST_INT operand that takes more than one instruction
|
|
|
|
|
+;; to load.
|
|
|
|
|
+(define_predicate "splittable_const_int_operand"
|
|
|
|
|
+ (match_code "const_int")
|
|
|
|
|
+{
|
|
|
|
|
+ /* Don't handle multi-word moves this way; we don't want to introduce
|
|
|
|
|
+ the individual word-mode moves until after reload. */
|
|
|
|
|
+ if (GET_MODE_SIZE (mode) > UNITS_PER_WORD)
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ /* Otherwise check whether the constant can be loaded in a single
|
|
|
|
|
+ instruction. */
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ return !LUI_OPERAND (INTVAL (op)) && !SMALL_OPERAND (INTVAL (op));
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_predicate "move_operand"
|
|
|
|
|
+ (match_operand 0 "general_operand")
|
|
|
|
|
+{
|
|
|
|
|
+ enum riscv_symbol_type symbol_type;
|
|
|
|
|
+
|
|
|
|
|
+ /* The thinking here is as follows:
|
|
|
|
|
+
|
|
|
|
|
+ (1) The move expanders should split complex load sequences into
|
|
|
|
|
+ individual instructions. Those individual instructions can
|
|
|
|
|
+ then be optimized by all rtl passes.
|
|
|
|
|
+
|
|
|
|
|
+ (2) The target of pre-reload load sequences should not be used
|
|
|
|
|
+ to store temporary results. If the target register is only
|
|
|
|
|
+ assigned one value, reload can rematerialize that value
|
|
|
|
|
+ on demand, rather than spill it to the stack.
|
|
|
|
|
+
|
|
|
|
|
+ (3) If we allowed pre-reload passes like combine and cse to recreate
|
|
|
|
|
+ complex load sequences, we would want to be able to split the
|
|
|
|
|
+ sequences before reload as well, so that the pre-reload scheduler
|
|
|
|
|
+ can see the individual instructions. This falls foul of (2);
|
|
|
|
|
+ the splitter would be forced to reuse the target register for
|
|
|
|
|
+ intermediate results.
|
|
|
|
|
+
|
|
|
|
|
+ (4) We want to define complex load splitters for combine. These
|
|
|
|
|
+ splitters can request a temporary scratch register, which avoids
|
|
|
|
|
+ the problem in (2). They allow things like:
|
|
|
|
|
+
|
|
|
|
|
+ (set (reg T1) (high SYM))
|
|
|
|
|
+ (set (reg T2) (low (reg T1) SYM))
|
|
|
|
|
+ (set (reg X) (plus (reg T2) (const_int OFFSET)))
|
|
|
|
|
+
|
|
|
|
|
+ to be combined into:
|
|
|
|
|
+
|
|
|
|
|
+ (set (reg T3) (high SYM+OFFSET))
|
|
|
|
|
+ (set (reg X) (lo_sum (reg T3) SYM+OFFSET))
|
|
|
|
|
+
|
|
|
|
|
+ if T2 is only used this once. */
|
|
|
|
|
+ switch (GET_CODE (op))
|
|
|
|
|
+ {
|
|
|
|
|
+ case CONST_INT:
|
|
|
|
|
+ return !splittable_const_int_operand (op, mode);
|
|
|
|
|
+
|
|
|
|
|
+ case CONST:
|
|
|
|
|
+ case SYMBOL_REF:
|
|
|
|
|
+ case LABEL_REF:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ return riscv_symbolic_constant_p (op, &symbol_type)
|
|
|
|
|
+ && !riscv_split_symbol_type (symbol_type);
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+ case HIGH:
|
|
|
|
|
+ op = XEXP (op, 0);
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ return riscv_symbolic_constant_p (op, &symbol_type)
|
|
|
|
|
+ && riscv_split_symbol_type (symbol_type)
|
|
|
|
|
+ && symbol_type != SYMBOL_PCREL;
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+ default:
|
|
|
|
|
+ return true;
|
|
|
|
|
+ }
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_predicate "symbolic_operand"
|
|
|
|
|
+ (match_code "const,symbol_ref,label_ref")
|
|
|
|
|
+{
|
|
|
|
|
+ enum riscv_symbol_type type;
|
|
|
|
|
+ return riscv_symbolic_constant_p (op, &type);
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_predicate "absolute_symbolic_operand"
|
|
|
|
|
+ (match_code "const,symbol_ref,label_ref")
|
|
|
|
|
+{
|
|
|
|
|
+ enum riscv_symbol_type type;
|
|
|
|
|
+ return (riscv_symbolic_constant_p (op, &type)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ && (type == SYMBOL_ABSOLUTE || type == SYMBOL_PCREL));
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_predicate "plt_symbolic_operand"
|
|
|
|
|
+ (match_code "const,symbol_ref,label_ref")
|
|
|
|
|
+{
|
|
|
|
|
+ enum riscv_symbol_type type;
|
|
|
|
|
+ return (riscv_symbolic_constant_p (op, &type)
|
|
|
|
|
+ && type == SYMBOL_GOT_DISP && !SYMBOL_REF_WEAK (op) && TARGET_PLT);
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_predicate "call_insn_operand"
|
|
|
|
|
+ (ior (match_operand 0 "absolute_symbolic_operand")
|
|
|
|
|
+ (match_operand 0 "plt_symbolic_operand")
|
|
|
|
|
+ (match_operand 0 "register_operand")))
|
|
|
|
|
+
|
|
|
|
|
+(define_predicate "modular_operator"
|
|
|
|
|
+ (match_code "plus,minus,mult,ashift"))
|
|
|
|
|
+
|
|
|
|
|
+(define_predicate "equality_operator"
|
|
|
|
|
+ (match_code "eq,ne"))
|
|
|
|
|
+
|
|
|
|
|
+(define_predicate "order_operator"
|
|
|
|
|
+ (match_code "eq,ne,lt,ltu,le,leu,ge,geu,gt,gtu"))
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_predicate "signed_order_operator"
|
|
|
|
|
+ (match_code "eq,ne,lt,le,ge,gt"))
|
|
|
|
|
+
|
|
|
|
|
+(define_predicate "fp_native_comparison"
|
|
|
|
|
+ (match_code "eq,lt,le,gt,ge"))
|
|
|
|
|
+
|
|
|
|
|
+(define_predicate "fp_scc_comparison"
|
|
|
|
|
+ (match_code "unordered,ordered,unlt,unge,unle,ungt,ltgt,ne,eq,lt,le,gt,ge"))
|
|
|
|
|
+
|
|
|
|
|
+(define_predicate "fp_branch_comparison"
|
|
|
|
|
+ (match_code "unordered,ordered,unlt,unge,unle,ungt,uneq,ltgt,ne,eq,lt,le,gt,ge"))
|
|
|
|
|
diff --git original-gcc/gcc/config/riscv/riscv-builtins.c gcc-6.3.0/gcc/config/riscv/riscv-builtins.c
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..626a6a33f99
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/riscv-builtins.c
|
|
|
|
|
@@ -0,0 +1,287 @@
|
|
|
|
|
+/* Subroutines used for expanding RISC-V builtins.
|
|
|
|
|
+ Copyright (C) 2011-2017 Free Software Foundation, Inc.
|
|
|
|
|
+ Contributed by Andrew Waterman (andrew@sifive.com).
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+GCC is free software; you can redistribute it and/or modify
|
|
|
|
|
+it under the terms of the GNU General Public License as published by
|
|
|
|
|
+the Free Software Foundation; either version 3, or (at your option)
|
|
|
|
|
+any later version.
|
|
|
|
|
+
|
|
|
|
|
+GCC is distributed in the hope that it will be useful,
|
|
|
|
|
+but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
+GNU General Public License for more details.
|
|
|
|
|
+
|
|
|
|
|
+You should have received a copy of the GNU General Public License
|
|
|
|
|
+along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+<http://www.gnu.org/licenses/>. */
|
|
|
|
|
+
|
|
|
|
|
+#include "config.h"
|
|
|
|
|
+#include "system.h"
|
|
|
|
|
+#include "coretypes.h"
|
|
|
|
|
+#include "tm.h"
|
|
|
|
|
+#include "rtl.h"
|
|
|
|
|
+#include "tree.h"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#include "gimple-expr.h"
|
|
|
|
|
+#include "memmodel.h"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+#include "expmed.h"
|
|
|
|
|
+#include "optabs.h"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#include "recog.h"
|
|
|
|
|
+#include "diagnostic-core.h"
|
|
|
|
|
+#include "stor-layout.h"
|
|
|
|
|
+#include "expr.h"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+#include "langhooks.h"
|
|
|
|
|
+
|
|
|
|
|
+/* Macros to create an enumeration identifier for a function prototype. */
|
|
|
|
|
+#define RISCV_FTYPE_NAME1(A, B) RISCV_##A##_FTYPE_##B
|
|
|
|
|
+
|
|
|
|
|
+/* Classifies the prototype of a built-in function. */
|
|
|
|
|
+enum riscv_function_type {
|
|
|
|
|
+#define DEF_RISCV_FTYPE(NARGS, LIST) RISCV_FTYPE_NAME##NARGS LIST,
|
|
|
|
|
+#include "config/riscv/riscv-ftypes.def"
|
|
|
|
|
+#undef DEF_RISCV_FTYPE
|
|
|
|
|
+ RISCV_MAX_FTYPE_MAX
|
|
|
|
|
+};
|
|
|
|
|
+
|
|
|
|
|
+/* Specifies how a built-in function should be converted into rtl. */
|
|
|
|
|
+enum riscv_builtin_type {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* The function corresponds directly to an .md pattern. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ RISCV_BUILTIN_DIRECT,
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Likewise, but with return type VOID. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ RISCV_BUILTIN_DIRECT_NO_TARGET
|
|
|
|
|
+};
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Declare an availability predicate for built-in functions. */
|
|
|
|
|
+#define AVAIL(NAME, COND) \
|
|
|
|
|
+ static unsigned int \
|
|
|
|
|
+ riscv_builtin_avail_##NAME (void) \
|
|
|
|
|
+ { \
|
|
|
|
|
+ return (COND); \
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* This structure describes a single built-in function. */
|
|
|
|
|
+struct riscv_builtin_description {
|
|
|
|
|
+ /* The code of the main .md file instruction. See riscv_builtin_type
|
|
|
|
|
+ for more information. */
|
|
|
|
|
+ enum insn_code icode;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* The name of the built-in function. */
|
|
|
|
|
+ const char *name;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Specifies how the function should be expanded. */
|
|
|
|
|
+ enum riscv_builtin_type builtin_type;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* The function's prototype. */
|
|
|
|
|
+ enum riscv_function_type prototype;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Whether the function is available. */
|
|
|
|
|
+ unsigned int (*avail) (void);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+};
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+AVAIL (hard_float, TARGET_HARD_FLOAT)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Construct a riscv_builtin_description from the given arguments.
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ INSN is the name of the associated instruction pattern, without the
|
|
|
|
|
+ leading CODE_FOR_riscv_.
|
|
|
|
|
+
|
|
|
|
|
+ NAME is the name of the function itself, without the leading
|
|
|
|
|
+ "__builtin_riscv_".
|
|
|
|
|
+
|
|
|
|
|
+ BUILTIN_TYPE and FUNCTION_TYPE are riscv_builtin_description fields.
|
|
|
|
|
+
|
|
|
|
|
+ AVAIL is the name of the availability predicate, without the leading
|
|
|
|
|
+ riscv_builtin_avail_. */
|
|
|
|
|
+#define RISCV_BUILTIN(INSN, NAME, BUILTIN_TYPE, FUNCTION_TYPE, AVAIL) \
|
|
|
|
|
+ { CODE_FOR_riscv_ ## INSN, "__builtin_riscv_" NAME, \
|
|
|
|
|
+ BUILTIN_TYPE, FUNCTION_TYPE, riscv_builtin_avail_ ## AVAIL }
|
|
|
|
|
+
|
|
|
|
|
+/* Define __builtin_riscv_<INSN>, which is a RISCV_BUILTIN_DIRECT function
|
|
|
|
|
+ mapped to instruction CODE_FOR_riscv_<INSN>, FUNCTION_TYPE and AVAIL
|
|
|
|
|
+ are as for RISCV_BUILTIN. */
|
|
|
|
|
+#define DIRECT_BUILTIN(INSN, FUNCTION_TYPE, AVAIL) \
|
|
|
|
|
+ RISCV_BUILTIN (INSN, #INSN, RISCV_BUILTIN_DIRECT, FUNCTION_TYPE, AVAIL)
|
|
|
|
|
+
|
|
|
|
|
+/* Define __builtin_riscv_<INSN>, which is a RISCV_BUILTIN_DIRECT_NO_TARGET
|
|
|
|
|
+ function mapped to instruction CODE_FOR_riscv_<INSN>, FUNCTION_TYPE
|
|
|
|
|
+ and AVAIL are as for RISCV_BUILTIN. */
|
|
|
|
|
+#define DIRECT_NO_TARGET_BUILTIN(INSN, FUNCTION_TYPE, AVAIL) \
|
|
|
|
|
+ RISCV_BUILTIN (INSN, #INSN, RISCV_BUILTIN_DIRECT_NO_TARGET, \
|
|
|
|
|
+ FUNCTION_TYPE, AVAIL)
|
|
|
|
|
+
|
|
|
|
|
+/* Argument types. */
|
|
|
|
|
+#define RISCV_ATYPE_VOID void_type_node
|
|
|
|
|
+#define RISCV_ATYPE_USI unsigned_intSI_type_node
|
|
|
|
|
+
|
|
|
|
|
+/* RISCV_FTYPE_ATYPESN takes N RISCV_FTYPES-like type codes and lists
|
|
|
|
|
+ their associated RISCV_ATYPEs. */
|
|
|
|
|
+#define RISCV_FTYPE_ATYPES1(A, B) \
|
|
|
|
|
+ RISCV_ATYPE_##A, RISCV_ATYPE_##B
|
|
|
|
|
+
|
|
|
|
|
+static const struct riscv_builtin_description riscv_builtins[] = {
|
|
|
|
|
+ DIRECT_BUILTIN (frflags, RISCV_USI_FTYPE_VOID, hard_float),
|
|
|
|
|
+ DIRECT_NO_TARGET_BUILTIN (fsflags, RISCV_VOID_FTYPE_USI, hard_float)
|
|
|
|
|
+};
|
|
|
|
|
+
|
|
|
|
|
+/* Index I is the function declaration for riscv_builtins[I], or null if the
|
|
|
|
|
+ function isn't defined on this target. */
|
|
|
|
|
+static GTY(()) tree riscv_builtin_decls[ARRAY_SIZE (riscv_builtins)];
|
|
|
|
|
+
|
|
|
|
|
+/* Get the index I of the function declaration for riscv_builtin_decls[I]
|
|
|
|
|
+ using the instruction code or return null if not defined for the target. */
|
|
|
|
|
+static GTY(()) int riscv_builtin_decl_index[NUM_INSN_CODES];
|
|
|
|
|
+
|
|
|
|
|
+#define GET_BUILTIN_DECL(CODE) \
|
|
|
|
|
+ riscv_builtin_decls[riscv_builtin_decl_index[(CODE)]]
|
|
|
|
|
+
|
|
|
|
|
+/* Return the function type associated with function prototype TYPE. */
|
|
|
|
|
+
|
|
|
|
|
+static tree
|
|
|
|
|
+riscv_build_function_type (enum riscv_function_type type)
|
|
|
|
|
+{
|
|
|
|
|
+ static tree types[(int) RISCV_MAX_FTYPE_MAX];
|
|
|
|
|
+
|
|
|
|
|
+ if (types[(int) type] == NULL_TREE)
|
|
|
|
|
+ switch (type)
|
|
|
|
|
+ {
|
|
|
|
|
+#define DEF_RISCV_FTYPE(NUM, ARGS) \
|
|
|
|
|
+ case RISCV_FTYPE_NAME##NUM ARGS: \
|
|
|
|
|
+ types[(int) type] \
|
|
|
|
|
+ = build_function_type_list (RISCV_FTYPE_ATYPES##NUM ARGS, \
|
|
|
|
|
+ NULL_TREE); \
|
|
|
|
|
+ break;
|
|
|
|
|
+#include "config/riscv/riscv-ftypes.def"
|
|
|
|
|
+#undef DEF_RISCV_FTYPE
|
|
|
|
|
+ default:
|
|
|
|
|
+ gcc_unreachable ();
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ return types[(int) type];
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_INIT_BUILTINS. */
|
|
|
|
|
+
|
|
|
|
|
+void
|
|
|
|
|
+riscv_init_builtins (void)
|
|
|
|
|
+{
|
|
|
|
|
+ for (size_t i = 0; i < ARRAY_SIZE (riscv_builtins); i++)
|
|
|
|
|
+ {
|
|
|
|
|
+ const struct riscv_builtin_description *d = &riscv_builtins[i];
|
|
|
|
|
+ if (d->avail ())
|
|
|
|
|
+ {
|
|
|
|
|
+ tree type = riscv_build_function_type (d->prototype);
|
|
|
|
|
+ riscv_builtin_decls[i]
|
|
|
|
|
+ = add_builtin_function (d->name, type, i, BUILT_IN_MD, NULL, NULL);
|
|
|
|
|
+ riscv_builtin_decl_index[d->icode] = i;
|
|
|
|
|
+ }
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_BUILTIN_DECL. */
|
|
|
|
|
+
|
|
|
|
|
+tree
|
|
|
|
|
+riscv_builtin_decl (unsigned int code, bool initialize_p ATTRIBUTE_UNUSED)
|
|
|
|
|
+{
|
|
|
|
|
+ if (code >= ARRAY_SIZE (riscv_builtins))
|
|
|
|
|
+ return error_mark_node;
|
|
|
|
|
+ return riscv_builtin_decls[code];
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Take argument ARGNO from EXP's argument list and convert it into
|
|
|
|
|
+ an expand operand. Store the operand in *OP. */
|
|
|
|
|
+
|
|
|
|
|
+static void
|
|
|
|
|
+riscv_prepare_builtin_arg (struct expand_operand *op, tree exp, unsigned argno)
|
|
|
|
|
+{
|
|
|
|
|
+ tree arg = CALL_EXPR_ARG (exp, argno);
|
|
|
|
|
+ create_input_operand (op, expand_normal (arg), TYPE_MODE (TREE_TYPE (arg)));
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Expand instruction ICODE as part of a built-in function sequence.
|
|
|
|
|
+ Use the first NOPS elements of OPS as the instruction's operands.
|
|
|
|
|
+ HAS_TARGET_P is true if operand 0 is a target; it is false if the
|
|
|
|
|
+ instruction has no target.
|
|
|
|
|
+
|
|
|
|
|
+ Return the target rtx if HAS_TARGET_P, otherwise return const0_rtx. */
|
|
|
|
|
+
|
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_expand_builtin_insn (enum insn_code icode, unsigned int n_ops,
|
|
|
|
|
+ struct expand_operand *ops, bool has_target_p)
|
|
|
|
|
+{
|
|
|
|
|
+ if (!maybe_expand_insn (icode, n_ops, ops))
|
|
|
|
|
+ {
|
|
|
|
|
+ error ("invalid argument to built-in function");
|
|
|
|
|
+ return has_target_p ? gen_reg_rtx (ops[0].mode) : const0_rtx;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ return has_target_p ? ops[0].value : const0_rtx;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Expand a RISCV_BUILTIN_DIRECT or RISCV_BUILTIN_DIRECT_NO_TARGET function;
|
|
|
|
|
+ HAS_TARGET_P says which. EXP is the CALL_EXPR that calls the function
|
|
|
|
|
+ and ICODE is the code of the associated .md pattern. TARGET, if nonnull,
|
|
|
|
|
+ suggests a good place to put the result. */
|
|
|
|
|
+
|
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_expand_builtin_direct (enum insn_code icode, rtx target, tree exp,
|
|
|
|
|
+ bool has_target_p)
|
|
|
|
|
+{
|
|
|
|
|
+ struct expand_operand ops[MAX_RECOG_OPERANDS];
|
|
|
|
|
+
|
|
|
|
|
+ /* Map any target to operand 0. */
|
|
|
|
|
+ int opno = 0;
|
|
|
|
|
+ if (has_target_p)
|
|
|
|
|
+ create_output_operand (&ops[opno++], target, TYPE_MODE (TREE_TYPE (exp)));
|
|
|
|
|
+
|
|
|
|
|
+ /* Map the arguments to the other operands. */
|
|
|
|
|
+ gcc_assert (opno + call_expr_nargs (exp)
|
|
|
|
|
+ == insn_data[icode].n_generator_args);
|
|
|
|
|
+ for (int argno = 0; argno < call_expr_nargs (exp); argno++)
|
|
|
|
|
+ riscv_prepare_builtin_arg (&ops[opno++], exp, argno);
|
|
|
|
|
+
|
|
|
|
|
+ return riscv_expand_builtin_insn (icode, opno, ops, has_target_p);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_EXPAND_BUILTIN. */
|
|
|
|
|
+
|
|
|
|
|
+rtx
|
|
|
|
|
+riscv_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED,
|
|
|
|
|
+ machine_mode mode ATTRIBUTE_UNUSED,
|
|
|
|
|
+ int ignore ATTRIBUTE_UNUSED)
|
|
|
|
|
+{
|
|
|
|
|
+ tree fndecl = TREE_OPERAND (CALL_EXPR_FN (exp), 0);
|
|
|
|
|
+ unsigned int fcode = DECL_FUNCTION_CODE (fndecl);
|
|
|
|
|
+ const struct riscv_builtin_description *d = &riscv_builtins[fcode];
|
|
|
|
|
+
|
|
|
|
|
+ switch (d->builtin_type)
|
|
|
|
|
+ {
|
|
|
|
|
+ case RISCV_BUILTIN_DIRECT:
|
|
|
|
|
+ return riscv_expand_builtin_direct (d->icode, target, exp, true);
|
|
|
|
|
+
|
|
|
|
|
+ case RISCV_BUILTIN_DIRECT_NO_TARGET:
|
|
|
|
|
+ return riscv_expand_builtin_direct (d->icode, target, exp, false);
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ gcc_unreachable ();
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_ATOMIC_ASSIGN_EXPAND_FENV. */
|
|
|
|
|
+
|
|
|
|
|
+void
|
|
|
|
|
+riscv_atomic_assign_expand_fenv (tree *hold, tree *clear, tree *update)
|
|
|
|
|
+{
|
|
|
|
|
+ if (!TARGET_HARD_FLOAT)
|
|
|
|
|
+ return;
|
|
|
|
|
+
|
|
|
|
|
+ tree frflags = GET_BUILTIN_DECL (CODE_FOR_riscv_frflags);
|
|
|
|
|
+ tree fsflags = GET_BUILTIN_DECL (CODE_FOR_riscv_fsflags);
|
|
|
|
|
+ tree old_flags = create_tmp_var_raw (RISCV_ATYPE_USI);
|
|
|
|
|
+
|
|
|
|
|
+ *hold = build2 (MODIFY_EXPR, RISCV_ATYPE_USI, old_flags,
|
|
|
|
|
+ build_call_expr (frflags, 0));
|
|
|
|
|
+ *clear = build_call_expr (fsflags, 1, old_flags);
|
|
|
|
|
+ *update = NULL_TREE;
|
|
|
|
|
+}
|
|
|
|
|
diff --git original-gcc/gcc/config/riscv/riscv-c.c gcc-6.3.0/gcc/config/riscv/riscv-c.c
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..64e7cf877af
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/riscv-c.c
|
|
|
|
|
@@ -0,0 +1,92 @@
|
|
|
|
|
+/* RISC-V-specific code for C family languages.
|
|
|
|
|
+ Copyright (C) 2011-2017 Free Software Foundation, Inc.
|
|
|
|
|
+ Contributed by Andrew Waterman (andrew@sifive.com).
|
|
|
|
|
+
|
|
|
|
|
+This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+GCC is free software; you can redistribute it and/or modify
|
|
|
|
|
+it under the terms of the GNU General Public License as published by
|
|
|
|
|
+the Free Software Foundation; either version 3, or (at your option)
|
|
|
|
|
+any later version.
|
|
|
|
|
+
|
|
|
|
|
+GCC is distributed in the hope that it will be useful,
|
|
|
|
|
+but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
+GNU General Public License for more details.
|
|
|
|
|
+
|
|
|
|
|
+You should have received a copy of the GNU General Public License
|
|
|
|
|
+along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+<http://www.gnu.org/licenses/>. */
|
|
|
|
|
+
|
|
|
|
|
+#include "config.h"
|
|
|
|
|
+#include "system.h"
|
|
|
|
|
+#include "coretypes.h"
|
|
|
|
|
+#include "tm.h"
|
|
|
|
|
+#include "c-family/c-common.h"
|
|
|
|
|
+#include "cpplib.h"
|
|
|
|
|
+
|
|
|
|
|
+#define builtin_define(TXT) cpp_define (pfile, TXT)
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_CPU_CPP_BUILTINS. */
|
|
|
|
|
+
|
|
|
|
|
+void
|
|
|
|
|
+riscv_cpu_cpp_builtins (cpp_reader *pfile)
|
|
|
|
|
+{
|
|
|
|
|
+ builtin_define ("__riscv");
|
|
|
|
|
+
|
|
|
|
|
+ if (TARGET_RVC)
|
|
|
|
|
+ builtin_define ("__riscv_compressed");
|
|
|
|
|
+
|
|
|
|
|
+ if (TARGET_ATOMIC)
|
|
|
|
|
+ builtin_define ("__riscv_atomic");
|
|
|
|
|
+
|
|
|
|
|
+ if (TARGET_MUL)
|
|
|
|
|
+ builtin_define ("__riscv_mul");
|
|
|
|
|
+ if (TARGET_DIV)
|
|
|
|
|
+ builtin_define ("__riscv_div");
|
|
|
|
|
+ if (TARGET_DIV && TARGET_MUL)
|
|
|
|
|
+ builtin_define ("__riscv_muldiv");
|
|
|
|
|
+
|
|
|
|
|
+ builtin_define_with_int_value ("__riscv_xlen", UNITS_PER_WORD * 8);
|
|
|
|
|
+ if (TARGET_HARD_FLOAT)
|
|
|
|
|
+ builtin_define_with_int_value ("__riscv_flen", UNITS_PER_FP_REG * 8);
|
|
|
|
|
+
|
|
|
|
|
+ if (TARGET_HARD_FLOAT && TARGET_FDIV)
|
|
|
|
|
+ {
|
|
|
|
|
+ builtin_define ("__riscv_fdiv");
|
|
|
|
|
+ builtin_define ("__riscv_fsqrt");
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ switch (riscv_abi)
|
|
|
|
|
+ {
|
|
|
|
|
+ case ABI_ILP32:
|
|
|
|
|
+ case ABI_LP64:
|
|
|
|
|
+ builtin_define ("__riscv_float_abi_soft");
|
|
|
|
|
+ break;
|
|
|
|
|
+
|
|
|
|
|
+ case ABI_ILP32F:
|
|
|
|
|
+ case ABI_LP64F:
|
|
|
|
|
+ builtin_define ("__riscv_float_abi_single");
|
|
|
|
|
+ break;
|
|
|
|
|
+
|
|
|
|
|
+ case ABI_ILP32D:
|
|
|
|
|
+ case ABI_LP64D:
|
|
|
|
|
+ builtin_define ("__riscv_float_abi_double");
|
|
|
|
|
+ break;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ switch (riscv_cmodel)
|
|
|
|
|
+ {
|
|
|
|
|
+ case CM_MEDLOW:
|
|
|
|
|
+ builtin_define ("__riscv_cmodel_medlow");
|
|
|
|
|
+ break;
|
|
|
|
|
+
|
|
|
|
|
+ case CM_MEDANY:
|
|
|
|
|
+ builtin_define ("__riscv_cmodel_medany");
|
|
|
|
|
+ break;
|
|
|
|
|
+
|
|
|
|
|
+ case CM_PIC:
|
|
|
|
|
+ builtin_define ("__riscv_cmodel_pic");
|
|
|
|
|
+ break;
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
diff --git original-gcc/gcc/config/riscv/riscv-ftypes.def gcc-6.3.0/gcc/config/riscv/riscv-ftypes.def
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..eb69148368f
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/riscv-ftypes.def
|
|
|
|
|
@@ -0,0 +1,30 @@
|
|
|
|
|
+/* Definitions of prototypes for RISC-V built-in functions. -*- C -*-
|
|
|
|
|
+ Copyright (C) 2011-2017 Free Software Foundation, Inc.
|
|
|
|
|
+ Contributed by Andrew Waterman (andrew@sifive.com).
|
|
|
|
|
+ Based on MIPS target for GNU compiler.
|
|
|
|
|
+
|
|
|
|
|
+This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+GCC is free software; you can redistribute it and/or modify
|
|
|
|
|
+it under the terms of the GNU General Public License as published by
|
|
|
|
|
+the Free Software Foundation; either version 3, or (at your option)
|
|
|
|
|
+any later version.
|
|
|
|
|
+
|
|
|
|
|
+GCC is distributed in the hope that it will be useful,
|
|
|
|
|
+but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
+GNU General Public License for more details.
|
|
|
|
|
+
|
|
|
|
|
+You should have received a copy of the GNU General Public License
|
|
|
|
|
+along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+<http://www.gnu.org/licenses/>. */
|
|
|
|
|
+
|
|
|
|
|
+/* Invoke DEF_RISCV_FTYPE (NARGS, LIST) for each prototype used by
|
|
|
|
|
+ RISCV built-in functions, where:
|
|
|
|
|
+
|
|
|
|
|
+ NARGS is the number of arguments.
|
|
|
|
|
+ LIST contains the return-type code followed by the codes for each
|
|
|
|
|
+ argument type. */
|
|
|
|
|
+
|
|
|
|
|
+DEF_RISCV_FTYPE (1, (USI, VOID))
|
|
|
|
|
+DEF_RISCV_FTYPE (1, (VOID, USI))
|
|
|
|
|
diff --git original-gcc/gcc/config/riscv/riscv-modes.def gcc-6.3.0/gcc/config/riscv/riscv-modes.def
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..5c65667da68
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/riscv-modes.def
|
|
|
|
|
@@ -0,0 +1,22 @@
|
|
|
|
|
+/* Extra machine modes for RISC-V target.
|
|
|
|
|
+ Copyright (C) 2011-2017 Free Software Foundation, Inc.
|
|
|
|
|
+ Contributed by Andrew Waterman (andrew@sifive.com).
|
|
|
|
|
+ Based on MIPS target for GNU compiler.
|
|
|
|
|
+
|
|
|
|
|
+This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+GCC is free software; you can redistribute it and/or modify
|
|
|
|
|
+it under the terms of the GNU General Public License as published by
|
|
|
|
|
+the Free Software Foundation; either version 3, or (at your option)
|
|
|
|
|
+any later version.
|
|
|
|
|
+
|
|
|
|
|
+GCC is distributed in the hope that it will be useful,
|
|
|
|
|
+but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
+GNU General Public License for more details.
|
|
|
|
|
+
|
|
|
|
|
+You should have received a copy of the GNU General Public License
|
|
|
|
|
+along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+<http://www.gnu.org/licenses/>. */
|
|
|
|
|
+
|
|
|
|
|
+FLOAT_MODE (TF, 16, ieee_quad_format);
|
|
|
|
|
diff --git original-gcc/gcc/config/riscv/riscv-opts.h gcc-6.3.0/gcc/config/riscv/riscv-opts.h
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..2b19233379c
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/riscv-opts.h
|
|
|
|
|
@@ -0,0 +1,41 @@
|
|
|
|
|
+/* Definition of RISC-V target for GNU compiler.
|
|
|
|
|
+ Copyright (C) 2016-2017 Free Software Foundation, Inc.
|
|
|
|
|
+ Contributed by Andrew Waterman (andrew@sifive.com).
|
|
|
|
|
+
|
|
|
|
|
+This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+GCC is free software; you can redistribute it and/or modify
|
|
|
|
|
+it under the terms of the GNU General Public License as published by
|
|
|
|
|
+the Free Software Foundation; either version 3, or (at your option)
|
|
|
|
|
+any later version.
|
|
|
|
|
+
|
|
|
|
|
+GCC is distributed in the hope that it will be useful,
|
|
|
|
|
+but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
+GNU General Public License for more details.
|
|
|
|
|
+
|
|
|
|
|
+You should have received a copy of the GNU General Public License
|
|
|
|
|
+along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+<http://www.gnu.org/licenses/>. */
|
|
|
|
|
+
|
|
|
|
|
+#ifndef GCC_RISCV_OPTS_H
|
|
|
|
|
+#define GCC_RISCV_OPTS_H
|
|
|
|
|
+
|
|
|
|
|
+enum riscv_abi_type {
|
|
|
|
|
+ ABI_ILP32,
|
|
|
|
|
+ ABI_ILP32F,
|
|
|
|
|
+ ABI_ILP32D,
|
|
|
|
|
+ ABI_LP64,
|
|
|
|
|
+ ABI_LP64F,
|
|
|
|
|
+ ABI_LP64D
|
|
|
|
|
+};
|
|
|
|
|
+extern enum riscv_abi_type riscv_abi;
|
|
|
|
|
+
|
|
|
|
|
+enum riscv_code_model {
|
|
|
|
|
+ CM_MEDLOW,
|
|
|
|
|
+ CM_MEDANY,
|
|
|
|
|
+ CM_PIC
|
|
|
|
|
+};
|
|
|
|
|
+extern enum riscv_code_model riscv_cmodel;
|
|
|
|
|
+
|
|
|
|
|
+#endif /* ! GCC_RISCV_OPTS_H */
|
|
|
|
|
diff --git original-gcc/gcc/config/riscv/riscv-protos.h gcc-6.3.0/gcc/config/riscv/riscv-protos.h
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..de7023f88c5
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/riscv-protos.h
|
|
|
|
|
@@ -0,0 +1,83 @@
|
|
|
|
|
+/* Definition of RISC-V target for GNU compiler.
|
|
|
|
|
+ Copyright (C) 2011-2017 Free Software Foundation, Inc.
|
|
|
|
|
+ Contributed by Andrew Waterman (andrew@sifive.com).
|
|
|
|
|
+ Based on MIPS target for GNU compiler.
|
|
|
|
|
+
|
|
|
|
|
+This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+GCC is free software; you can redistribute it and/or modify
|
|
|
|
|
+it under the terms of the GNU General Public License as published by
|
|
|
|
|
+the Free Software Foundation; either version 3, or (at your option)
|
|
|
|
|
+any later version.
|
|
|
|
|
+
|
|
|
|
|
+GCC is distributed in the hope that it will be useful,
|
|
|
|
|
+but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
+GNU General Public License for more details.
|
|
|
|
|
+
|
|
|
|
|
+You should have received a copy of the GNU General Public License
|
|
|
|
|
+along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+<http://www.gnu.org/licenses/>. */
|
|
|
|
|
+
|
|
|
|
|
+#ifndef GCC_RISCV_PROTOS_H
|
|
|
|
|
+#define GCC_RISCV_PROTOS_H
|
|
|
|
|
+
|
|
|
|
|
+/* Symbol types we understand. The order of this list must match that of
|
|
|
|
|
+ the unspec enum in riscv.md, subsequent to UNSPEC_ADDRESS_FIRST. */
|
|
|
|
|
+enum riscv_symbol_type {
|
|
|
|
|
+ SYMBOL_ABSOLUTE,
|
|
|
|
|
+ SYMBOL_PCREL,
|
|
|
|
|
+ SYMBOL_GOT_DISP,
|
|
|
|
|
+ SYMBOL_TLS,
|
|
|
|
|
+ SYMBOL_TLS_LE,
|
|
|
|
|
+ SYMBOL_TLS_IE,
|
|
|
|
|
+ SYMBOL_TLS_GD
|
|
|
|
|
+};
|
|
|
|
|
+#define NUM_SYMBOL_TYPES (SYMBOL_TLS_GD + 1)
|
|
|
|
|
+
|
|
|
|
|
+/* Routines implemented in riscv.c. */
|
|
|
|
|
+extern enum riscv_symbol_type riscv_classify_symbolic_expression (rtx);
|
|
|
|
|
+extern bool riscv_symbolic_constant_p (rtx, enum riscv_symbol_type *);
|
|
|
|
|
+extern int riscv_regno_mode_ok_for_base_p (int, enum machine_mode, bool);
|
|
|
|
|
+extern bool riscv_hard_regno_mode_ok_p (unsigned int, enum machine_mode);
|
|
|
|
|
+extern int riscv_address_insns (rtx, enum machine_mode, bool);
|
|
|
|
|
+extern int riscv_const_insns (rtx);
|
|
|
|
|
+extern int riscv_split_const_insns (rtx);
|
|
|
|
|
+extern int riscv_load_store_insns (rtx, rtx_insn *);
|
|
|
|
|
+extern rtx riscv_emit_move (rtx, rtx);
|
|
|
|
|
+extern bool riscv_split_symbol (rtx, rtx, enum machine_mode, rtx *);
|
|
|
|
|
+extern bool riscv_split_symbol_type (enum riscv_symbol_type);
|
|
|
|
|
+extern rtx riscv_unspec_address (rtx, enum riscv_symbol_type);
|
|
|
|
|
+extern void riscv_move_integer (rtx, rtx, HOST_WIDE_INT);
|
|
|
|
|
+extern bool riscv_legitimize_move (enum machine_mode, rtx, rtx);
|
|
|
|
|
+extern rtx riscv_subword (rtx, bool);
|
|
|
|
|
+extern bool riscv_split_64bit_move_p (rtx, rtx);
|
|
|
|
|
+extern void riscv_split_doubleword_move (rtx, rtx);
|
|
|
|
|
+extern const char *riscv_output_move (rtx, rtx);
|
|
|
|
|
+extern const char *riscv_output_gpr_save (unsigned);
|
|
|
|
|
+#ifdef RTX_CODE
|
|
|
|
|
+extern void riscv_expand_int_scc (rtx, enum rtx_code, rtx, rtx);
|
|
|
|
|
+extern void riscv_expand_float_scc (rtx, enum rtx_code, rtx, rtx);
|
|
|
|
|
+extern void riscv_expand_conditional_branch (rtx, enum rtx_code, rtx, rtx);
|
|
|
|
|
+#endif
|
|
|
|
|
+extern rtx riscv_legitimize_call_address (rtx);
|
|
|
|
|
+extern void riscv_set_return_address (rtx, rtx);
|
|
|
|
|
+extern bool riscv_expand_block_move (rtx, rtx, rtx);
|
|
|
|
|
+extern rtx riscv_return_addr (int, rtx);
|
|
|
|
|
+extern HOST_WIDE_INT riscv_initial_elimination_offset (int, int);
|
|
|
|
|
+extern void riscv_expand_prologue (void);
|
|
|
|
|
+extern void riscv_expand_epilogue (bool);
|
|
|
|
|
+extern bool riscv_can_use_return_insn (void);
|
|
|
|
|
+extern rtx riscv_function_value (const_tree, const_tree, enum machine_mode);
|
|
|
|
|
+extern unsigned int riscv_hard_regno_nregs (int, enum machine_mode);
|
|
|
|
|
+
|
|
|
|
|
+/* Routines implemented in riscv-c.c. */
|
|
|
|
|
+void riscv_cpu_cpp_builtins (cpp_reader *);
|
|
|
|
|
+
|
|
|
|
|
+/* Routines implemented in riscv-builtins.c. */
|
|
|
|
|
+extern void riscv_atomic_assign_expand_fenv (tree *, tree *, tree *);
|
|
|
|
|
+extern rtx riscv_expand_builtin (tree, rtx, rtx, enum machine_mode, int);
|
|
|
|
|
+extern tree riscv_builtin_decl (unsigned int, bool);
|
|
|
|
|
+extern void riscv_init_builtins (void);
|
|
|
|
|
+
|
|
|
|
|
+#endif /* ! GCC_RISCV_PROTOS_H */
|
|
|
|
|
diff --git original-gcc/gcc/config/riscv/riscv.c gcc-6.3.0/gcc/config/riscv/riscv.c
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..834651f4214
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/riscv.c
|
|
|
|
|
@@ -0,0 +1,4138 @@
|
|
|
|
|
+/* Subroutines used for code generation for RISC-V.
|
|
|
|
|
+ Copyright (C) 2011-2017 Free Software Foundation, Inc.
|
|
|
|
|
+ Contributed by Andrew Waterman (andrew@sifive.com).
|
|
|
|
|
+ Based on MIPS target for GNU compiler.
|
|
|
|
|
+
|
|
|
|
|
+This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+GCC is free software; you can redistribute it and/or modify
|
|
|
|
|
+it under the terms of the GNU General Public License as published by
|
|
|
|
|
+the Free Software Foundation; either version 3, or (at your option)
|
|
|
|
|
+any later version.
|
|
|
|
|
+
|
|
|
|
|
+GCC is distributed in the hope that it will be useful,
|
|
|
|
|
+but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
+GNU General Public License for more details.
|
|
|
|
|
+
|
|
|
|
|
+You should have received a copy of the GNU General Public License
|
|
|
|
|
+along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+<http://www.gnu.org/licenses/>. */
|
|
|
|
|
+
|
|
|
|
|
+#include "config.h"
|
|
|
|
|
+#include "system.h"
|
|
|
|
|
+#include "coretypes.h"
|
|
|
|
|
+#include "tm.h"
|
|
|
|
|
+#include "rtl.h"
|
|
|
|
|
+#include "regs.h"
|
|
|
|
|
+#include "hard-reg-set.h"
|
|
|
|
|
+#include "insn-config.h"
|
|
|
|
|
+#include "conditions.h"
|
|
|
|
|
+#include "insn-attr.h"
|
|
|
|
|
+#include "recog.h"
|
|
|
|
|
+#include "output.h"
|
|
|
|
|
+#include "hash-set.h"
|
|
|
|
|
+#include "machmode.h"
|
|
|
|
|
+#include "vec.h"
|
|
|
|
|
+#include "double-int.h"
|
|
|
|
|
+#include "input.h"
|
|
|
|
|
+#include "alias.h"
|
|
|
|
|
+#include "symtab.h"
|
|
|
|
|
+#include "wide-int.h"
|
|
|
|
|
+#include "inchash.h"
|
|
|
|
|
+#include "tree.h"
|
|
|
|
|
+#include "fold-const.h"
|
|
|
|
|
+#include "varasm.h"
|
|
|
|
|
+#include "stringpool.h"
|
|
|
|
|
+#include "stor-layout.h"
|
|
|
|
|
+#include "calls.h"
|
|
|
|
|
+#include "function.h"
|
|
|
|
|
+#include "hashtab.h"
|
|
|
|
|
+#include "flags.h"
|
|
|
|
|
+#include "statistics.h"
|
|
|
|
|
+#include "real.h"
|
|
|
|
|
+#include "fixed-value.h"
|
|
|
|
|
+#include "expmed.h"
|
|
|
|
|
+#include "dojump.h"
|
|
|
|
|
+#include "explow.h"
|
|
|
|
|
+#include "memmodel.h"
|
|
|
|
|
+#include "emit-rtl.h"
|
|
|
|
|
+#include "stmt.h"
|
|
|
|
|
+#include "expr.h"
|
|
|
|
|
+#include "insn-codes.h"
|
|
|
|
|
+#include "optabs.h"
|
|
|
|
|
+#include "libfuncs.h"
|
|
|
|
|
+#include "reload.h"
|
|
|
|
|
+#include "tm_p.h"
|
|
|
|
|
+#include "ggc.h"
|
|
|
|
|
+#include "gstab.h"
|
|
|
|
|
+#include "hash-table.h"
|
|
|
|
|
+#include "debug.h"
|
|
|
|
|
+#include "target.h"
|
|
|
|
|
+#include "target-def.h"
|
|
|
|
|
+#include "common/common-target.h"
|
|
|
|
|
+#include "langhooks.h"
|
|
|
|
|
+#include "dominance.h"
|
|
|
|
|
+#include "cfg.h"
|
|
|
|
|
+#include "cfgrtl.h"
|
|
|
|
|
+#include "cfganal.h"
|
|
|
|
|
+#include "lcm.h"
|
|
|
|
|
+#include "cfgbuild.h"
|
|
|
|
|
+#include "cfgcleanup.h"
|
|
|
|
|
+#include "predict.h"
|
|
|
|
|
+#include "basic-block.h"
|
|
|
|
|
+#include "bitmap.h"
|
|
|
|
|
+#include "regset.h"
|
|
|
|
|
+#include "df.h"
|
|
|
|
|
+#include "sched-int.h"
|
|
|
|
|
+#include "tree-ssa-alias.h"
|
|
|
|
|
+#include "internal-fn.h"
|
|
|
|
|
+#include "gimple-fold.h"
|
|
|
|
|
+#include "tree-eh.h"
|
|
|
|
|
+#include "gimple-expr.h"
|
|
|
|
|
+#include "is-a.h"
|
|
|
|
|
+#include "gimple.h"
|
|
|
|
|
+#include "gimplify.h"
|
|
|
|
|
+#include "diagnostic.h"
|
|
|
|
|
+#include "target-globals.h"
|
|
|
|
|
+#include "opts.h"
|
|
|
|
|
+#include "tree-pass.h"
|
|
|
|
|
+#include "context.h"
|
|
|
|
|
+#include "hash-map.h"
|
|
|
|
|
+#include "plugin-api.h"
|
|
|
|
|
+#include "ipa-ref.h"
|
|
|
|
|
+#include "cgraph.h"
|
|
|
|
|
+#include "builtins.h"
|
|
|
|
|
+#include "rtl-iter.h"
|
|
|
|
|
+
|
|
|
|
|
+/* True if X is an UNSPEC wrapper around a SYMBOL_REF or LABEL_REF. */
|
|
|
|
|
+#define UNSPEC_ADDRESS_P(X) \
|
|
|
|
|
+ (GET_CODE (X) == UNSPEC \
|
|
|
|
|
+ && XINT (X, 1) >= UNSPEC_ADDRESS_FIRST \
|
|
|
|
|
+ && XINT (X, 1) < UNSPEC_ADDRESS_FIRST + NUM_SYMBOL_TYPES)
|
|
|
|
|
+
|
|
|
|
|
+/* Extract the symbol or label from UNSPEC wrapper X. */
|
|
|
|
|
+#define UNSPEC_ADDRESS(X) \
|
|
|
|
|
+ XVECEXP (X, 0, 0)
|
|
|
|
|
+
|
|
|
|
|
+/* Extract the symbol type from UNSPEC wrapper X. */
|
|
|
|
|
+#define UNSPEC_ADDRESS_TYPE(X) \
|
|
|
|
|
+ ((enum riscv_symbol_type) (XINT (X, 1) - UNSPEC_ADDRESS_FIRST))
|
|
|
|
|
+
|
|
|
|
|
+/* True if bit BIT is set in VALUE. */
|
|
|
|
|
+#define BITSET_P(VALUE, BIT) (((VALUE) & (1ULL << (BIT))) != 0)
|
|
|
|
|
+
|
|
|
|
|
+/* Classifies an address.
|
|
|
|
|
+
|
|
|
|
|
+ ADDRESS_REG
|
|
|
|
|
+ A natural register + offset address. The register satisfies
|
|
|
|
|
+ riscv_valid_base_register_p and the offset is a const_arith_operand.
|
|
|
|
|
+
|
|
|
|
|
+ ADDRESS_LO_SUM
|
|
|
|
|
+ A LO_SUM rtx. The first operand is a valid base register and
|
|
|
|
|
+ the second operand is a symbolic address.
|
|
|
|
|
+
|
|
|
|
|
+ ADDRESS_CONST_INT
|
|
|
|
|
+ A signed 16-bit constant address.
|
|
|
|
|
+
|
|
|
|
|
+ ADDRESS_SYMBOLIC:
|
|
|
|
|
+ A constant symbolic address. */
|
|
|
|
|
+enum riscv_address_type {
|
|
|
|
|
+ ADDRESS_REG,
|
|
|
|
|
+ ADDRESS_LO_SUM,
|
|
|
|
|
+ ADDRESS_CONST_INT,
|
|
|
|
|
+ ADDRESS_SYMBOLIC
|
|
|
|
|
+};
|
|
|
|
|
+
|
|
|
|
|
+/* Information about a function's frame layout. */
|
|
|
|
|
+struct GTY(()) riscv_frame_info {
|
|
|
|
|
+ /* The size of the frame in bytes. */
|
|
|
|
|
+ HOST_WIDE_INT total_size;
|
|
|
|
|
+
|
|
|
|
|
+ /* Bit X is set if the function saves or restores GPR X. */
|
|
|
|
|
+ unsigned int mask;
|
|
|
|
|
+
|
|
|
|
|
+ /* Likewise FPR X. */
|
|
|
|
|
+ unsigned int fmask;
|
|
|
|
|
+
|
|
|
|
|
+ /* How much the GPR save/restore routines adjust sp (or 0 if unused). */
|
|
|
|
|
+ unsigned save_libcall_adjustment;
|
|
|
|
|
+
|
|
|
|
|
+ /* Offsets of fixed-point and floating-point save areas from frame bottom */
|
|
|
|
|
+ HOST_WIDE_INT gp_sp_offset;
|
|
|
|
|
+ HOST_WIDE_INT fp_sp_offset;
|
|
|
|
|
+
|
|
|
|
|
+ /* Offset of virtual frame pointer from stack pointer/frame bottom */
|
|
|
|
|
+ HOST_WIDE_INT frame_pointer_offset;
|
|
|
|
|
+
|
|
|
|
|
+ /* Offset of hard frame pointer from stack pointer/frame bottom */
|
|
|
|
|
+ HOST_WIDE_INT hard_frame_pointer_offset;
|
|
|
|
|
+
|
|
|
|
|
+ /* The offset of arg_pointer_rtx from the bottom of the frame. */
|
|
|
|
|
+ HOST_WIDE_INT arg_pointer_offset;
|
|
|
|
|
+};
|
|
|
|
|
+
|
|
|
|
|
+struct GTY(()) machine_function {
|
|
|
|
|
+ /* The number of extra stack bytes taken up by register varargs.
|
|
|
|
|
+ This area is allocated by the callee at the very top of the frame. */
|
|
|
|
|
+ int varargs_size;
|
|
|
|
|
+
|
|
|
|
|
+ /* Memoized return value of leaf_function_p. <0 if false, >0 if true. */
|
|
|
|
|
+ int is_leaf;
|
|
|
|
|
+
|
|
|
|
|
+ /* The current frame information, calculated by riscv_compute_frame_info. */
|
|
|
|
|
+ struct riscv_frame_info frame;
|
|
|
|
|
+};
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+/* Information about a single argument. */
|
|
|
|
|
+struct riscv_arg_info {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* True if the argument is at least partially passed on the stack. */
|
|
|
|
|
+ bool stack_p;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* The number of integer registers allocated to this argument. */
|
|
|
|
|
+ unsigned int num_gprs;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* The offset of the first register used, provided num_gprs is nonzero.
|
|
|
|
|
+ If passed entirely on the stack, the value is MAX_ARGS_IN_REGISTERS. */
|
|
|
|
|
+ unsigned int gpr_offset;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* The number of floating-point registers allocated to this argument. */
|
|
|
|
|
+ unsigned int num_fprs;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* The offset of the first register used, provided num_fprs is nonzero. */
|
|
|
|
|
+ unsigned int fpr_offset;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+};
|
|
|
|
|
+
|
|
|
|
|
+/* Information about an address described by riscv_address_type.
|
|
|
|
|
+
|
|
|
|
|
+ ADDRESS_CONST_INT
|
|
|
|
|
+ No fields are used.
|
|
|
|
|
+
|
|
|
|
|
+ ADDRESS_REG
|
|
|
|
|
+ REG is the base register and OFFSET is the constant offset.
|
|
|
|
|
+
|
|
|
|
|
+ ADDRESS_LO_SUM
|
|
|
|
|
+ REG and OFFSET are the operands to the LO_SUM and SYMBOL_TYPE
|
|
|
|
|
+ is the type of symbol it references.
|
|
|
|
|
+
|
|
|
|
|
+ ADDRESS_SYMBOLIC
|
|
|
|
|
+ SYMBOL_TYPE is the type of symbol that the address references. */
|
|
|
|
|
+struct riscv_address_info {
|
|
|
|
|
+ enum riscv_address_type type;
|
|
|
|
|
+ rtx reg;
|
|
|
|
|
+ rtx offset;
|
|
|
|
|
+ enum riscv_symbol_type symbol_type;
|
|
|
|
|
+};
|
|
|
|
|
+
|
|
|
|
|
+/* One stage in a constant building sequence. These sequences have
|
|
|
|
|
+ the form:
|
|
|
|
|
+
|
|
|
|
|
+ A = VALUE[0]
|
|
|
|
|
+ A = A CODE[1] VALUE[1]
|
|
|
|
|
+ A = A CODE[2] VALUE[2]
|
|
|
|
|
+ ...
|
|
|
|
|
+
|
|
|
|
|
+ where A is an accumulator, each CODE[i] is a binary rtl operation
|
|
|
|
|
+ and each VALUE[i] is a constant integer. CODE[0] is undefined. */
|
|
|
|
|
+struct riscv_integer_op {
|
|
|
|
|
+ enum rtx_code code;
|
|
|
|
|
+ unsigned HOST_WIDE_INT value;
|
|
|
|
|
+};
|
|
|
|
|
+
|
|
|
|
|
+/* The largest number of operations needed to load an integer constant.
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ The worst case is LUI, ADDI, SLLI, ADDI, SLLI, ADDI, SLLI, ADDI. */
|
|
|
|
|
+#define RISCV_MAX_INTEGER_OPS 8
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+/* Costs of various operations on the different architectures. */
|
|
|
|
|
+
|
|
|
|
|
+struct riscv_tune_info
|
|
|
|
|
+{
|
|
|
|
|
+ unsigned short fp_add[2];
|
|
|
|
|
+ unsigned short fp_mul[2];
|
|
|
|
|
+ unsigned short fp_div[2];
|
|
|
|
|
+ unsigned short int_mul[2];
|
|
|
|
|
+ unsigned short int_div[2];
|
|
|
|
|
+ unsigned short issue_rate;
|
|
|
|
|
+ unsigned short branch_cost;
|
|
|
|
|
+ unsigned short memory_cost;
|
|
|
|
|
+};
|
|
|
|
|
+
|
|
|
|
|
+/* Information about one CPU we know about. */
|
|
|
|
|
+struct riscv_cpu_info {
|
|
|
|
|
+ /* This CPU's canonical name. */
|
|
|
|
|
+ const char *name;
|
|
|
|
|
+
|
|
|
|
|
+ /* Tuning parameters for this CPU. */
|
|
|
|
|
+ const struct riscv_tune_info *tune_info;
|
|
|
|
|
+};
|
|
|
|
|
+
|
|
|
|
|
+/* Global variables for machine-dependent things. */
|
|
|
|
|
+
|
|
|
|
|
+/* Which tuning parameters to use. */
|
|
|
|
|
+static const struct riscv_tune_info *tune_info;
|
|
|
|
|
+
|
|
|
|
|
+/* Index R is the smallest register class that contains register R. */
|
|
|
|
|
+const enum reg_class riscv_regno_to_class[FIRST_PSEUDO_REGISTER] = {
|
|
|
|
|
+ GR_REGS, GR_REGS, GR_REGS, GR_REGS,
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ GR_REGS, GR_REGS, SIBCALL_REGS, SIBCALL_REGS,
|
|
|
|
|
+ JALR_REGS, JALR_REGS, JALR_REGS, JALR_REGS,
|
|
|
|
|
+ JALR_REGS, JALR_REGS, JALR_REGS, JALR_REGS,
|
|
|
|
|
+ JALR_REGS, JALR_REGS, JALR_REGS, JALR_REGS,
|
|
|
|
|
+ JALR_REGS, JALR_REGS, JALR_REGS, JALR_REGS,
|
|
|
|
|
+ JALR_REGS, JALR_REGS, JALR_REGS, JALR_REGS,
|
|
|
|
|
+ SIBCALL_REGS, SIBCALL_REGS, SIBCALL_REGS, SIBCALL_REGS,
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ FP_REGS, FP_REGS, FP_REGS, FP_REGS,
|
|
|
|
|
+ FP_REGS, FP_REGS, FP_REGS, FP_REGS,
|
|
|
|
|
+ FP_REGS, FP_REGS, FP_REGS, FP_REGS,
|
|
|
|
|
+ FP_REGS, FP_REGS, FP_REGS, FP_REGS,
|
|
|
|
|
+ FP_REGS, FP_REGS, FP_REGS, FP_REGS,
|
|
|
|
|
+ FP_REGS, FP_REGS, FP_REGS, FP_REGS,
|
|
|
|
|
+ FP_REGS, FP_REGS, FP_REGS, FP_REGS,
|
|
|
|
|
+ FP_REGS, FP_REGS, FP_REGS, FP_REGS,
|
|
|
|
|
+ FRAME_REGS, FRAME_REGS,
|
|
|
|
|
+};
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Costs to use when optimizing for rocket. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+static const struct riscv_tune_info rocket_tune_info = {
|
|
|
|
|
+ {COSTS_N_INSNS (4), COSTS_N_INSNS (5)}, /* fp_add */
|
|
|
|
|
+ {COSTS_N_INSNS (4), COSTS_N_INSNS (5)}, /* fp_mul */
|
|
|
|
|
+ {COSTS_N_INSNS (20), COSTS_N_INSNS (20)}, /* fp_div */
|
|
|
|
|
+ {COSTS_N_INSNS (4), COSTS_N_INSNS (4)}, /* int_mul */
|
|
|
|
|
+ {COSTS_N_INSNS (6), COSTS_N_INSNS (6)}, /* int_div */
|
|
|
|
|
+ 1, /* issue_rate */
|
|
|
|
|
+ 3, /* branch_cost */
|
|
|
|
|
+ 5 /* memory_cost */
|
|
|
|
|
+};
|
|
|
|
|
+
|
|
|
|
|
+/* Costs to use when optimizing for size. */
|
|
|
|
|
+static const struct riscv_tune_info optimize_size_tune_info = {
|
|
|
|
|
+ {COSTS_N_INSNS (1), COSTS_N_INSNS (1)}, /* fp_add */
|
|
|
|
|
+ {COSTS_N_INSNS (1), COSTS_N_INSNS (1)}, /* fp_mul */
|
|
|
|
|
+ {COSTS_N_INSNS (1), COSTS_N_INSNS (1)}, /* fp_div */
|
|
|
|
|
+ {COSTS_N_INSNS (1), COSTS_N_INSNS (1)}, /* int_mul */
|
|
|
|
|
+ {COSTS_N_INSNS (1), COSTS_N_INSNS (1)}, /* int_div */
|
|
|
|
|
+ 1, /* issue_rate */
|
|
|
|
|
+ 1, /* branch_cost */
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ 2 /* memory_cost */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+};
|
|
|
|
|
+
|
|
|
|
|
+/* A table describing all the processors GCC knows about. */
|
|
|
|
|
+static const struct riscv_cpu_info riscv_cpu_info_table[] = {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ { "rocket", &rocket_tune_info },
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+};
|
|
|
|
|
+
|
|
|
|
|
+/* Return the riscv_cpu_info entry for the given name string. */
|
|
|
|
|
+
|
|
|
|
|
+static const struct riscv_cpu_info *
|
|
|
|
|
+riscv_parse_cpu (const char *cpu_string)
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ for (unsigned i = 0; i < ARRAY_SIZE (riscv_cpu_info_table); i++)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ if (strcmp (riscv_cpu_info_table[i].name, cpu_string) == 0)
|
|
|
|
|
+ return riscv_cpu_info_table + i;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ error ("unknown cpu %qs for -mtune", cpu_string);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ return riscv_cpu_info_table;
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Helper function for riscv_build_integer; arguments are as for
|
|
|
|
|
+ riscv_build_integer. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+static int
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+riscv_build_integer_1 (struct riscv_integer_op codes[RISCV_MAX_INTEGER_OPS],
|
|
|
|
|
+ HOST_WIDE_INT value, enum machine_mode mode)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ HOST_WIDE_INT low_part = CONST_LOW_PART (value);
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ int cost = RISCV_MAX_INTEGER_OPS + 1, alt_cost;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ struct riscv_integer_op alt_codes[RISCV_MAX_INTEGER_OPS];
|
|
|
|
|
+
|
|
|
|
|
+ if (SMALL_OPERAND (value) || LUI_OPERAND (value))
|
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Simply ADDI or LUI. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ codes[0].code = UNKNOWN;
|
|
|
|
|
+ codes[0].value = value;
|
|
|
|
|
+ return 1;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* End with ADDI. When constructing HImode constants, do not generate any
|
|
|
|
|
+ intermediate value that is not itself a valid HImode constant. The
|
|
|
|
|
+ XORI case below will handle those remaining HImode constants. */
|
|
|
|
|
+ if (low_part != 0 && (mode != HImode || value - low_part <= INT16_MAX))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ alt_cost = 1 + riscv_build_integer_1 (alt_codes, value - low_part, mode);
|
|
|
|
|
+ if (alt_cost < cost)
|
|
|
|
|
+ {
|
|
|
|
|
+ alt_codes[alt_cost-1].code = PLUS;
|
|
|
|
|
+ alt_codes[alt_cost-1].value = low_part;
|
|
|
|
|
+ memcpy (codes, alt_codes, sizeof (alt_codes));
|
|
|
|
|
+ cost = alt_cost;
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* End with XORI. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ if (cost > 2 && (low_part < 0 || mode == HImode))
|
|
|
|
|
+ {
|
|
|
|
|
+ alt_cost = 1 + riscv_build_integer_1 (alt_codes, value ^ low_part, mode);
|
|
|
|
|
+ if (alt_cost < cost)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ {
|
|
|
|
|
+ alt_codes[alt_cost-1].code = XOR;
|
|
|
|
|
+ alt_codes[alt_cost-1].value = low_part;
|
|
|
|
|
+ memcpy (codes, alt_codes, sizeof (alt_codes));
|
|
|
|
|
+ cost = alt_cost;
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Eliminate trailing zeros and end with SLLI. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ if (cost > 2 && (value & 1) == 0)
|
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ int shift = ctz_hwi (value);
|
|
|
|
|
+ unsigned HOST_WIDE_INT x = value;
|
|
|
|
|
+ x = sext_hwi (x >> shift, HOST_BITS_PER_WIDE_INT - shift);
|
|
|
|
|
+
|
|
|
|
|
+ /* Don't eliminate the lower 12 bits if LUI might apply. */
|
|
|
|
|
+ if (shift > IMM_BITS && !SMALL_OPERAND (x) && LUI_OPERAND (x << IMM_BITS))
|
|
|
|
|
+ shift -= IMM_BITS, x <<= IMM_BITS;
|
|
|
|
|
+
|
|
|
|
|
+ alt_cost = 1 + riscv_build_integer_1 (alt_codes, x, mode);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ if (alt_cost < cost)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ {
|
|
|
|
|
+ alt_codes[alt_cost-1].code = ASHIFT;
|
|
|
|
|
+ alt_codes[alt_cost-1].value = shift;
|
|
|
|
|
+ memcpy (codes, alt_codes, sizeof (alt_codes));
|
|
|
|
|
+ cost = alt_cost;
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ gcc_assert (cost <= RISCV_MAX_INTEGER_OPS);
|
|
|
|
|
+ return cost;
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Fill CODES with a sequence of rtl operations to load VALUE.
|
|
|
|
|
+ Return the number of operations needed. */
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+static int
|
|
|
|
|
+riscv_build_integer (struct riscv_integer_op *codes, HOST_WIDE_INT value,
|
|
|
|
|
+ enum machine_mode mode)
|
|
|
|
|
+{
|
|
|
|
|
+ int cost = riscv_build_integer_1 (codes, value, mode);
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Eliminate leading zeros and end with SRLI. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ if (value > 0 && cost > 2)
|
|
|
|
|
+ {
|
|
|
|
|
+ struct riscv_integer_op alt_codes[RISCV_MAX_INTEGER_OPS];
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ int alt_cost, shift = clz_hwi (value);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ HOST_WIDE_INT shifted_val;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Try filling trailing bits with 1s. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ shifted_val = (value << shift) | ((((HOST_WIDE_INT) 1) << shift) - 1);
|
|
|
|
|
+ alt_cost = 1 + riscv_build_integer_1 (alt_codes, shifted_val, mode);
|
|
|
|
|
+ if (alt_cost < cost)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ {
|
|
|
|
|
+ alt_codes[alt_cost-1].code = LSHIFTRT;
|
|
|
|
|
+ alt_codes[alt_cost-1].value = shift;
|
|
|
|
|
+ memcpy (codes, alt_codes, sizeof (alt_codes));
|
|
|
|
|
+ cost = alt_cost;
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Try filling trailing bits with 0s. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ shifted_val = value << shift;
|
|
|
|
|
+ alt_cost = 1 + riscv_build_integer_1 (alt_codes, shifted_val, mode);
|
|
|
|
|
+ if (alt_cost < cost)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ {
|
|
|
|
|
+ alt_codes[alt_cost-1].code = LSHIFTRT;
|
|
|
|
|
+ alt_codes[alt_cost-1].value = shift;
|
|
|
|
|
+ memcpy (codes, alt_codes, sizeof (alt_codes));
|
|
|
|
|
+ cost = alt_cost;
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ return cost;
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Return the cost of constructing VAL in the event that a scratch
|
|
|
|
|
+ register is available. */
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+static int
|
|
|
|
|
+riscv_split_integer_cost (HOST_WIDE_INT val)
|
|
|
|
|
+{
|
|
|
|
|
+ int cost;
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ unsigned HOST_WIDE_INT loval = sext_hwi (val, 32);
|
|
|
|
|
+ unsigned HOST_WIDE_INT hival = sext_hwi ((val - loval) >> 32, 32);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ struct riscv_integer_op codes[RISCV_MAX_INTEGER_OPS];
|
|
|
|
|
+
|
|
|
|
|
+ cost = 2 + riscv_build_integer (codes, loval, VOIDmode);
|
|
|
|
|
+ if (loval != hival)
|
|
|
|
|
+ cost += riscv_build_integer (codes, hival, VOIDmode);
|
|
|
|
|
+
|
|
|
|
|
+ return cost;
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Return the cost of constructing the integer constant VAL. */
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+static int
|
|
|
|
|
+riscv_integer_cost (HOST_WIDE_INT val)
|
|
|
|
|
+{
|
|
|
|
|
+ struct riscv_integer_op codes[RISCV_MAX_INTEGER_OPS];
|
|
|
|
|
+ return MIN (riscv_build_integer (codes, val, VOIDmode),
|
|
|
|
|
+ riscv_split_integer_cost (val));
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Try to split a 64b integer into 32b parts, then reassemble. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_split_integer (HOST_WIDE_INT val, enum machine_mode mode)
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ unsigned HOST_WIDE_INT loval = sext_hwi (val, 32);
|
|
|
|
|
+ unsigned HOST_WIDE_INT hival = sext_hwi ((val - loval) >> 32, 32);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ rtx hi = gen_reg_rtx (mode), lo = gen_reg_rtx (mode);
|
|
|
|
|
+
|
|
|
|
|
+ riscv_move_integer (hi, hi, hival);
|
|
|
|
|
+ riscv_move_integer (lo, lo, loval);
|
|
|
|
|
+
|
|
|
|
|
+ hi = gen_rtx_fmt_ee (ASHIFT, mode, hi, GEN_INT (32));
|
|
|
|
|
+ hi = force_reg (mode, hi);
|
|
|
|
|
+
|
|
|
|
|
+ return gen_rtx_fmt_ee (PLUS, mode, hi, lo);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return true if X is a thread-local symbol. */
|
|
|
|
|
+
|
|
|
|
|
+static bool
|
|
|
|
|
+riscv_tls_symbol_p (const_rtx x)
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ return SYMBOL_REF_P (x) && SYMBOL_REF_TLS_MODEL (x) != 0;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Return true if symbol X binds locally. */
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+static bool
|
|
|
|
|
+riscv_symbol_binds_local_p (const_rtx x)
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (SYMBOL_REF_P (x))
|
|
|
|
|
+ return (SYMBOL_REF_DECL (x)
|
|
|
|
|
+ ? targetm.binds_local_p (SYMBOL_REF_DECL (x))
|
|
|
|
|
+ : SYMBOL_REF_LOCAL_P (x));
|
|
|
|
|
+ else
|
|
|
|
|
+ return false;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return the method that should be used to access SYMBOL_REF or
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ LABEL_REF X. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+static enum riscv_symbol_type
|
|
|
|
|
+riscv_classify_symbol (const_rtx x)
|
|
|
|
|
+{
|
|
|
|
|
+ if (riscv_tls_symbol_p (x))
|
|
|
|
|
+ return SYMBOL_TLS;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (GET_CODE (x) == SYMBOL_REF && flag_pic && !riscv_symbol_binds_local_p (x))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ return SYMBOL_GOT_DISP;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ return riscv_cmodel == CM_MEDLOW ? SYMBOL_ABSOLUTE : SYMBOL_PCREL;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Classify the base of symbolic expression X. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+enum riscv_symbol_type
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+riscv_classify_symbolic_expression (rtx x)
|
|
|
|
|
+{
|
|
|
|
|
+ rtx offset;
|
|
|
|
|
+
|
|
|
|
|
+ split_const (x, &x, &offset);
|
|
|
|
|
+ if (UNSPEC_ADDRESS_P (x))
|
|
|
|
|
+ return UNSPEC_ADDRESS_TYPE (x);
|
|
|
|
|
+
|
|
|
|
|
+ return riscv_classify_symbol (x);
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Return true if X is a symbolic constant. If it is, store the type of
|
|
|
|
|
+ the symbol in *SYMBOL_TYPE. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+bool
|
|
|
|
|
+riscv_symbolic_constant_p (rtx x, enum riscv_symbol_type *symbol_type)
|
|
|
|
|
+{
|
|
|
|
|
+ rtx offset;
|
|
|
|
|
+
|
|
|
|
|
+ split_const (x, &x, &offset);
|
|
|
|
|
+ if (UNSPEC_ADDRESS_P (x))
|
|
|
|
|
+ {
|
|
|
|
|
+ *symbol_type = UNSPEC_ADDRESS_TYPE (x);
|
|
|
|
|
+ x = UNSPEC_ADDRESS (x);
|
|
|
|
|
+ }
|
|
|
|
|
+ else if (GET_CODE (x) == SYMBOL_REF || GET_CODE (x) == LABEL_REF)
|
|
|
|
|
+ *symbol_type = riscv_classify_symbol (x);
|
|
|
|
|
+ else
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ if (offset == const0_rtx)
|
|
|
|
|
+ return true;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Nonzero offsets are only valid for references that don't use the GOT. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ switch (*symbol_type)
|
|
|
|
|
+ {
|
|
|
|
|
+ case SYMBOL_ABSOLUTE:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ case SYMBOL_PCREL:
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ case SYMBOL_TLS_LE:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* GAS rejects offsets outside the range [-2^31, 2^31-1]. */
|
|
|
|
|
+ return sext_hwi (INTVAL (offset), 32) == INTVAL (offset);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ default:
|
|
|
|
|
+ return false;
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Returns the number of instructions necessary to reference a symbol. */
|
|
|
|
|
+
|
|
|
|
|
+static int riscv_symbol_insns (enum riscv_symbol_type type)
|
|
|
|
|
+{
|
|
|
|
|
+ switch (type)
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ case SYMBOL_TLS: return 0; /* Depends on the TLS model. */
|
|
|
|
|
+ case SYMBOL_ABSOLUTE: return 2; /* LUI + the reference. */
|
|
|
|
|
+ case SYMBOL_PCREL: return 2; /* AUIPC + the reference. */
|
|
|
|
|
+ case SYMBOL_TLS_LE: return 3; /* LUI + ADD TP + the reference. */
|
|
|
|
|
+ case SYMBOL_GOT_DISP: return 3; /* AUIPC + LD GOT + the reference. */
|
|
|
|
|
+ default: gcc_unreachable ();
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_LEGITIMATE_CONSTANT_P. */
|
|
|
|
|
+
|
|
|
|
|
+static bool
|
|
|
|
|
+riscv_legitimate_constant_p (enum machine_mode mode ATTRIBUTE_UNUSED, rtx x)
|
|
|
|
|
+{
|
|
|
|
|
+ return riscv_const_insns (x) > 0;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_CANNOT_FORCE_CONST_MEM. */
|
|
|
|
|
+
|
|
|
|
|
+static bool
|
|
|
|
|
+riscv_cannot_force_const_mem (enum machine_mode mode ATTRIBUTE_UNUSED, rtx x)
|
|
|
|
|
+{
|
|
|
|
|
+ enum riscv_symbol_type type;
|
|
|
|
|
+ rtx base, offset;
|
|
|
|
|
+
|
|
|
|
|
+ /* There is no assembler syntax for expressing an address-sized
|
|
|
|
|
+ high part. */
|
|
|
|
|
+ if (GET_CODE (x) == HIGH)
|
|
|
|
|
+ return true;
|
|
|
|
|
+
|
|
|
|
|
+ split_const (x, &base, &offset);
|
|
|
|
|
+ if (riscv_symbolic_constant_p (base, &type))
|
|
|
|
|
+ {
|
|
|
|
|
+ /* As an optimization, don't spill symbolic constants that are as
|
|
|
|
|
+ cheap to rematerialize as to access in the constant pool. */
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ if (SMALL_OPERAND (INTVAL (offset)) && riscv_symbol_insns (type) > 0)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ return true;
|
|
|
|
|
+
|
|
|
|
|
+ /* As an optimization, avoid needlessly generate dynamic relocations. */
|
|
|
|
|
+ if (flag_pic)
|
|
|
|
|
+ return true;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ /* TLS symbols must be computed by riscv_legitimize_move. */
|
|
|
|
|
+ if (tls_referenced_p (x))
|
|
|
|
|
+ return true;
|
|
|
|
|
+
|
|
|
|
|
+ return false;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return true if register REGNO is a valid base register for mode MODE.
|
|
|
|
|
+ STRICT_P is true if REG_OK_STRICT is in effect. */
|
|
|
|
|
+
|
|
|
|
|
+int
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+riscv_regno_mode_ok_for_base_p (int regno,
|
|
|
|
|
+ enum machine_mode mode ATTRIBUTE_UNUSED,
|
|
|
|
|
+ bool strict_p)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
|
|
|
|
+ if (!HARD_REGISTER_NUM_P (regno))
|
|
|
|
|
+ {
|
|
|
|
|
+ if (!strict_p)
|
|
|
|
|
+ return true;
|
|
|
|
|
+ regno = reg_renumber[regno];
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ /* These fake registers will be eliminated to either the stack or
|
|
|
|
|
+ hard frame pointer, both of which are usually valid base registers.
|
|
|
|
|
+ Reload deals with the cases where the eliminated form isn't valid. */
|
|
|
|
|
+ if (regno == ARG_POINTER_REGNUM || regno == FRAME_POINTER_REGNUM)
|
|
|
|
|
+ return true;
|
|
|
|
|
+
|
|
|
|
|
+ return GP_REG_P (regno);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return true if X is a valid base register for mode MODE.
|
|
|
|
|
+ STRICT_P is true if REG_OK_STRICT is in effect. */
|
|
|
|
|
+
|
|
|
|
|
+static bool
|
|
|
|
|
+riscv_valid_base_register_p (rtx x, enum machine_mode mode, bool strict_p)
|
|
|
|
|
+{
|
|
|
|
|
+ if (!strict_p && GET_CODE (x) == SUBREG)
|
|
|
|
|
+ x = SUBREG_REG (x);
|
|
|
|
|
+
|
|
|
|
|
+ return (REG_P (x)
|
|
|
|
|
+ && riscv_regno_mode_ok_for_base_p (REGNO (x), mode, strict_p));
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return true if, for every base register BASE_REG, (plus BASE_REG X)
|
|
|
|
|
+ can address a value of mode MODE. */
|
|
|
|
|
+
|
|
|
|
|
+static bool
|
|
|
|
|
+riscv_valid_offset_p (rtx x, enum machine_mode mode)
|
|
|
|
|
+{
|
|
|
|
|
+ /* Check that X is a signed 12-bit number. */
|
|
|
|
|
+ if (!const_arith_operand (x, Pmode))
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ /* We may need to split multiword moves, so make sure that every word
|
|
|
|
|
+ is accessible. */
|
|
|
|
|
+ if (GET_MODE_SIZE (mode) > UNITS_PER_WORD
|
|
|
|
|
+ && !SMALL_OPERAND (INTVAL (x) + GET_MODE_SIZE (mode) - UNITS_PER_WORD))
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ return true;
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Should a symbol of type SYMBOL_TYPE should be split in two? */
|
|
|
|
|
+
|
|
|
|
|
+bool
|
|
|
|
|
+riscv_split_symbol_type (enum riscv_symbol_type symbol_type)
|
|
|
|
|
+{
|
|
|
|
|
+ if (symbol_type == SYMBOL_TLS_LE)
|
|
|
|
|
+ return true;
|
|
|
|
|
+
|
|
|
|
|
+ if (!TARGET_EXPLICIT_RELOCS)
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ return symbol_type == SYMBOL_ABSOLUTE || symbol_type == SYMBOL_PCREL;
|
|
|
|
|
+}
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+/* Return true if a LO_SUM can address a value of mode MODE when the
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ LO_SUM symbol has type SYM_TYPE. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+static bool
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+riscv_valid_lo_sum_p (enum riscv_symbol_type sym_type, enum machine_mode mode)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
|
|
|
|
+ /* Check that symbols of type SYMBOL_TYPE can be used to access values
|
|
|
|
|
+ of mode MODE. */
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (riscv_symbol_insns (sym_type) == 0)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ /* Check that there is a known low-part relocation. */
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (!riscv_split_symbol_type (sym_type))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ /* We may need to split multiword moves, so make sure that each word
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ can be accessed without inducing a carry. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ if (GET_MODE_SIZE (mode) > UNITS_PER_WORD
|
|
|
|
|
+ && GET_MODE_BITSIZE (mode) > GET_MODE_ALIGNMENT (mode))
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ return true;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return true if X is a valid address for machine mode MODE. If it is,
|
|
|
|
|
+ fill in INFO appropriately. STRICT_P is true if REG_OK_STRICT is in
|
|
|
|
|
+ effect. */
|
|
|
|
|
+
|
|
|
|
|
+static bool
|
|
|
|
|
+riscv_classify_address (struct riscv_address_info *info, rtx x,
|
|
|
|
|
+ enum machine_mode mode, bool strict_p)
|
|
|
|
|
+{
|
|
|
|
|
+ switch (GET_CODE (x))
|
|
|
|
|
+ {
|
|
|
|
|
+ case REG:
|
|
|
|
|
+ case SUBREG:
|
|
|
|
|
+ info->type = ADDRESS_REG;
|
|
|
|
|
+ info->reg = x;
|
|
|
|
|
+ info->offset = const0_rtx;
|
|
|
|
|
+ return riscv_valid_base_register_p (info->reg, mode, strict_p);
|
|
|
|
|
+
|
|
|
|
|
+ case PLUS:
|
|
|
|
|
+ info->type = ADDRESS_REG;
|
|
|
|
|
+ info->reg = XEXP (x, 0);
|
|
|
|
|
+ info->offset = XEXP (x, 1);
|
|
|
|
|
+ return (riscv_valid_base_register_p (info->reg, mode, strict_p)
|
|
|
|
|
+ && riscv_valid_offset_p (info->offset, mode));
|
|
|
|
|
+
|
|
|
|
|
+ case LO_SUM:
|
|
|
|
|
+ info->type = ADDRESS_LO_SUM;
|
|
|
|
|
+ info->reg = XEXP (x, 0);
|
|
|
|
|
+ info->offset = XEXP (x, 1);
|
|
|
|
|
+ /* We have to trust the creator of the LO_SUM to do something vaguely
|
|
|
|
|
+ sane. Target-independent code that creates a LO_SUM should also
|
|
|
|
|
+ create and verify the matching HIGH. Target-independent code that
|
|
|
|
|
+ adds an offset to a LO_SUM must prove that the offset will not
|
|
|
|
|
+ induce a carry. Failure to do either of these things would be
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ a bug, and we are not required to check for it here. The RISC-V
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ backend itself should only create LO_SUMs for valid symbolic
|
|
|
|
|
+ constants, with the high part being either a HIGH or a copy
|
|
|
|
|
+ of _gp. */
|
|
|
|
|
+ info->symbol_type
|
|
|
|
|
+ = riscv_classify_symbolic_expression (info->offset);
|
|
|
|
|
+ return (riscv_valid_base_register_p (info->reg, mode, strict_p)
|
|
|
|
|
+ && riscv_valid_lo_sum_p (info->symbol_type, mode));
|
|
|
|
|
+
|
|
|
|
|
+ case CONST_INT:
|
|
|
|
|
+ /* Small-integer addresses don't occur very often, but they
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ are legitimate if x0 is a valid base register. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ info->type = ADDRESS_CONST_INT;
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ return SMALL_OPERAND (INTVAL (x));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ default:
|
|
|
|
|
+ return false;
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_LEGITIMATE_ADDRESS_P. */
|
|
|
|
|
+
|
|
|
|
|
+static bool
|
|
|
|
|
+riscv_legitimate_address_p (enum machine_mode mode, rtx x, bool strict_p)
|
|
|
|
|
+{
|
|
|
|
|
+ struct riscv_address_info addr;
|
|
|
|
|
+
|
|
|
|
|
+ return riscv_classify_address (&addr, x, mode, strict_p);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return the number of instructions needed to load or store a value
|
|
|
|
|
+ of mode MODE at address X. Return 0 if X isn't valid for MODE.
|
|
|
|
|
+ Assume that multiword moves may need to be split into word moves
|
|
|
|
|
+ if MIGHT_SPLIT_P, otherwise assume that a single load or store is
|
|
|
|
|
+ enough. */
|
|
|
|
|
+
|
|
|
|
|
+int
|
|
|
|
|
+riscv_address_insns (rtx x, enum machine_mode mode, bool might_split_p)
|
|
|
|
|
+{
|
|
|
|
|
+ struct riscv_address_info addr;
|
|
|
|
|
+ int n = 1;
|
|
|
|
|
+
|
|
|
|
|
+ if (!riscv_classify_address (&addr, x, mode, false))
|
|
|
|
|
+ return 0;
|
|
|
|
|
+
|
|
|
|
|
+ /* BLKmode is used for single unaligned loads and stores and should
|
|
|
|
|
+ not count as a multiword mode. */
|
|
|
|
|
+ if (mode != BLKmode && might_split_p)
|
|
|
|
|
+ n += (GET_MODE_SIZE (mode) + UNITS_PER_WORD - 1) / UNITS_PER_WORD;
|
|
|
|
|
+
|
|
|
|
|
+ if (addr.type == ADDRESS_LO_SUM)
|
|
|
|
|
+ n += riscv_symbol_insns (addr.symbol_type) - 1;
|
|
|
|
|
+
|
|
|
|
|
+ return n;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return the number of instructions needed to load constant X.
|
|
|
|
|
+ Return 0 if X isn't a valid constant. */
|
|
|
|
|
+
|
|
|
|
|
+int
|
|
|
|
|
+riscv_const_insns (rtx x)
|
|
|
|
|
+{
|
|
|
|
|
+ enum riscv_symbol_type symbol_type;
|
|
|
|
|
+ rtx offset;
|
|
|
|
|
+
|
|
|
|
|
+ switch (GET_CODE (x))
|
|
|
|
|
+ {
|
|
|
|
|
+ case HIGH:
|
|
|
|
|
+ if (!riscv_symbolic_constant_p (XEXP (x, 0), &symbol_type)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ || !riscv_split_symbol_type (symbol_type))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ return 0;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* This is simply an LUI. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ return 1;
|
|
|
|
|
+
|
|
|
|
|
+ case CONST_INT:
|
|
|
|
|
+ {
|
|
|
|
|
+ int cost = riscv_integer_cost (INTVAL (x));
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Force complicated constants to memory. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ return cost < 4 ? cost : 0;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ case CONST_DOUBLE:
|
|
|
|
|
+ case CONST_VECTOR:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* We can use x0 to load floating-point zero. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ return x == CONST0_RTX (GET_MODE (x)) ? 1 : 0;
|
|
|
|
|
+
|
|
|
|
|
+ case CONST:
|
|
|
|
|
+ /* See if we can refer to X directly. */
|
|
|
|
|
+ if (riscv_symbolic_constant_p (x, &symbol_type))
|
|
|
|
|
+ return riscv_symbol_insns (symbol_type);
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ /* Otherwise try splitting the constant into a base and offset. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ split_const (x, &x, &offset);
|
|
|
|
|
+ if (offset != 0)
|
|
|
|
|
+ {
|
|
|
|
|
+ int n = riscv_const_insns (x);
|
|
|
|
|
+ if (n != 0)
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ return n + riscv_integer_cost (INTVAL (offset));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+ return 0;
|
|
|
|
|
+
|
|
|
|
|
+ case SYMBOL_REF:
|
|
|
|
|
+ case LABEL_REF:
|
|
|
|
|
+ return riscv_symbol_insns (riscv_classify_symbol (x));
|
|
|
|
|
+
|
|
|
|
|
+ default:
|
|
|
|
|
+ return 0;
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* X is a doubleword constant that can be handled by splitting it into
|
|
|
|
|
+ two words and loading each word separately. Return the number of
|
|
|
|
|
+ instructions required to do this. */
|
|
|
|
|
+
|
|
|
|
|
+int
|
|
|
|
|
+riscv_split_const_insns (rtx x)
|
|
|
|
|
+{
|
|
|
|
|
+ unsigned int low, high;
|
|
|
|
|
+
|
|
|
|
|
+ low = riscv_const_insns (riscv_subword (x, false));
|
|
|
|
|
+ high = riscv_const_insns (riscv_subword (x, true));
|
|
|
|
|
+ gcc_assert (low > 0 && high > 0);
|
|
|
|
|
+ return low + high;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return the number of instructions needed to implement INSN,
|
|
|
|
|
+ given that it loads from or stores to MEM. */
|
|
|
|
|
+
|
|
|
|
|
+int
|
|
|
|
|
+riscv_load_store_insns (rtx mem, rtx_insn *insn)
|
|
|
|
|
+{
|
|
|
|
|
+ enum machine_mode mode;
|
|
|
|
|
+ bool might_split_p;
|
|
|
|
|
+ rtx set;
|
|
|
|
|
+
|
|
|
|
|
+ gcc_assert (MEM_P (mem));
|
|
|
|
|
+ mode = GET_MODE (mem);
|
|
|
|
|
+
|
|
|
|
|
+ /* Try to prove that INSN does not need to be split. */
|
|
|
|
|
+ might_split_p = true;
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (GET_MODE_BITSIZE (mode) <= 32)
|
|
|
|
|
+ might_split_p = false;
|
|
|
|
|
+ else if (GET_MODE_BITSIZE (mode) == 64)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ {
|
|
|
|
|
+ set = single_set (insn);
|
|
|
|
|
+ if (set && !riscv_split_64bit_move_p (SET_DEST (set), SET_SRC (set)))
|
|
|
|
|
+ might_split_p = false;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ return riscv_address_insns (XEXP (mem, 0), mode, might_split_p);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Emit a move from SRC to DEST. Assume that the move expanders can
|
|
|
|
|
+ handle all moves if !can_create_pseudo_p (). The distinction is
|
|
|
|
|
+ important because, unlike emit_move_insn, the move expanders know
|
|
|
|
|
+ how to force Pmode objects into the constant pool even when the
|
|
|
|
|
+ constant pool address is not itself legitimate. */
|
|
|
|
|
+
|
|
|
|
|
+rtx
|
|
|
|
|
+riscv_emit_move (rtx dest, rtx src)
|
|
|
|
|
+{
|
|
|
|
|
+ return (can_create_pseudo_p ()
|
|
|
|
|
+ ? emit_move_insn (dest, src)
|
|
|
|
|
+ : emit_move_insn_1 (dest, src));
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Emit an instruction of the form (set TARGET SRC). */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_emit_set (rtx target, rtx src)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ emit_insn (gen_rtx_SET (target, src));
|
|
|
|
|
+ return target;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Emit an instruction of the form (set DEST (CODE X Y)). */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+static rtx
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+riscv_emit_binary (enum rtx_code code, rtx dest, rtx x, rtx y)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ return riscv_emit_set (dest, gen_rtx_fmt_ee (code, GET_MODE (dest), x, y));
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Compute (CODE X Y) and store the result in a new register
|
|
|
|
|
+ of mode MODE. Return that new register. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_force_binary (enum machine_mode mode, enum rtx_code code, rtx x, rtx y)
|
|
|
|
|
+{
|
|
|
|
|
+ return riscv_emit_binary (code, gen_reg_rtx (mode), x, y);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Copy VALUE to a register and return that register. If new pseudos
|
|
|
|
|
+ are allowed, copy it into a new register, otherwise use DEST. */
|
|
|
|
|
+
|
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_force_temporary (rtx dest, rtx value)
|
|
|
|
|
+{
|
|
|
|
|
+ if (can_create_pseudo_p ())
|
|
|
|
|
+ return force_reg (Pmode, value);
|
|
|
|
|
+ else
|
|
|
|
|
+ {
|
|
|
|
|
+ riscv_emit_move (dest, value);
|
|
|
|
|
+ return dest;
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Wrap symbol or label BASE in an UNSPEC address of type SYMBOL_TYPE,
|
|
|
|
|
+ then add CONST_INT OFFSET to the result. */
|
|
|
|
|
+
|
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_unspec_address_offset (rtx base, rtx offset,
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ enum riscv_symbol_type symbol_type)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
|
|
|
|
+ base = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, base),
|
|
|
|
|
+ UNSPEC_ADDRESS_FIRST + symbol_type);
|
|
|
|
|
+ if (offset != const0_rtx)
|
|
|
|
|
+ base = gen_rtx_PLUS (Pmode, base, offset);
|
|
|
|
|
+ return gen_rtx_CONST (Pmode, base);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return an UNSPEC address with underlying address ADDRESS and symbol
|
|
|
|
|
+ type SYMBOL_TYPE. */
|
|
|
|
|
+
|
|
|
|
|
+rtx
|
|
|
|
|
+riscv_unspec_address (rtx address, enum riscv_symbol_type symbol_type)
|
|
|
|
|
+{
|
|
|
|
|
+ rtx base, offset;
|
|
|
|
|
+
|
|
|
|
|
+ split_const (address, &base, &offset);
|
|
|
|
|
+ return riscv_unspec_address_offset (base, offset, symbol_type);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* If OP is an UNSPEC address, return the address to which it refers,
|
|
|
|
|
+ otherwise return OP itself. */
|
|
|
|
|
+
|
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_strip_unspec_address (rtx op)
|
|
|
|
|
+{
|
|
|
|
|
+ rtx base, offset;
|
|
|
|
|
+
|
|
|
|
|
+ split_const (op, &base, &offset);
|
|
|
|
|
+ if (UNSPEC_ADDRESS_P (base))
|
|
|
|
|
+ op = plus_constant (Pmode, UNSPEC_ADDRESS (base), INTVAL (offset));
|
|
|
|
|
+ return op;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* If riscv_unspec_address (ADDR, SYMBOL_TYPE) is a 32-bit value, add the
|
|
|
|
|
+ high part to BASE and return the result. Just return BASE otherwise.
|
|
|
|
|
+ TEMP is as for riscv_force_temporary.
|
|
|
|
|
+
|
|
|
|
|
+ The returned expression can be used as the first operand to a LO_SUM. */
|
|
|
|
|
+
|
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_unspec_offset_high (rtx temp, rtx addr, enum riscv_symbol_type symbol_type)
|
|
|
|
|
+{
|
|
|
|
|
+ addr = gen_rtx_HIGH (Pmode, riscv_unspec_address (addr, symbol_type));
|
|
|
|
|
+ return riscv_force_temporary (temp, addr);
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Load an entry from the GOT for a TLS GD access. */
|
|
|
|
|
+
|
|
|
|
|
+static rtx riscv_got_load_tls_gd (rtx dest, rtx sym)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (Pmode == DImode)
|
|
|
|
|
+ return gen_got_load_tls_gddi (dest, sym);
|
|
|
|
|
+ else
|
|
|
|
|
+ return gen_got_load_tls_gdsi (dest, sym);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Load an entry from the GOT for a TLS IE access. */
|
|
|
|
|
+
|
|
|
|
|
+static rtx riscv_got_load_tls_ie (rtx dest, rtx sym)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (Pmode == DImode)
|
|
|
|
|
+ return gen_got_load_tls_iedi (dest, sym);
|
|
|
|
|
+ else
|
|
|
|
|
+ return gen_got_load_tls_iesi (dest, sym);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Add in the thread pointer for a TLS LE access. */
|
|
|
|
|
+
|
|
|
|
|
+static rtx riscv_tls_add_tp_le (rtx dest, rtx base, rtx sym)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
|
|
|
|
+ rtx tp = gen_rtx_REG (Pmode, THREAD_POINTER_REGNUM);
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (Pmode == DImode)
|
|
|
|
|
+ return gen_tls_add_tp_ledi (dest, base, tp, sym);
|
|
|
|
|
+ else
|
|
|
|
|
+ return gen_tls_add_tp_lesi (dest, base, tp, sym);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* If MODE is MAX_MACHINE_MODE, ADDR appears as a move operand, otherwise
|
|
|
|
|
+ it appears in a MEM of that mode. Return true if ADDR is a legitimate
|
|
|
|
|
+ constant in that context and can be split into high and low parts.
|
|
|
|
|
+ If so, and if LOW_OUT is nonnull, emit the high part and store the
|
|
|
|
|
+ low part in *LOW_OUT. Leave *LOW_OUT unchanged otherwise.
|
|
|
|
|
+
|
|
|
|
|
+ TEMP is as for riscv_force_temporary and is used to load the high
|
|
|
|
|
+ part into a register.
|
|
|
|
|
+
|
|
|
|
|
+ When MODE is MAX_MACHINE_MODE, the low part is guaranteed to be
|
|
|
|
|
+ a legitimize SET_SRC for an .md pattern, otherwise the low part
|
|
|
|
|
+ is guaranteed to be a legitimate address for mode MODE. */
|
|
|
|
|
+
|
|
|
|
|
+bool
|
|
|
|
|
+riscv_split_symbol (rtx temp, rtx addr, enum machine_mode mode, rtx *low_out)
|
|
|
|
|
+{
|
|
|
|
|
+ enum riscv_symbol_type symbol_type;
|
|
|
|
|
+
|
|
|
|
|
+ if ((GET_CODE (addr) == HIGH && mode == MAX_MACHINE_MODE)
|
|
|
|
|
+ || !riscv_symbolic_constant_p (addr, &symbol_type)
|
|
|
|
|
+ || riscv_symbol_insns (symbol_type) == 0
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ || !riscv_split_symbol_type (symbol_type))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ if (low_out)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ switch (symbol_type)
|
|
|
|
|
+ {
|
|
|
|
|
+ case SYMBOL_ABSOLUTE:
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ rtx high = gen_rtx_HIGH (Pmode, copy_rtx (addr));
|
|
|
|
|
+ high = riscv_force_temporary (temp, high);
|
|
|
|
|
+ *low_out = gen_rtx_LO_SUM (Pmode, high, addr);
|
|
|
|
|
+ }
|
|
|
|
|
+ break;
|
|
|
|
|
+
|
|
|
|
|
+ case SYMBOL_PCREL:
|
|
|
|
|
+ {
|
|
|
|
|
+ static unsigned seqno;
|
|
|
|
|
+ char buf[32];
|
|
|
|
|
+ rtx label;
|
|
|
|
|
+
|
|
|
|
|
+ ssize_t bytes = snprintf (buf, sizeof (buf), ".LA%u", seqno);
|
|
|
|
|
+ gcc_assert ((size_t) bytes < sizeof (buf));
|
|
|
|
|
+
|
|
|
|
|
+ label = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (buf));
|
|
|
|
|
+ SYMBOL_REF_FLAGS (label) |= SYMBOL_FLAG_LOCAL;
|
|
|
|
|
+
|
|
|
|
|
+ if (temp == NULL)
|
|
|
|
|
+ temp = gen_reg_rtx (Pmode);
|
|
|
|
|
+
|
|
|
|
|
+ if (Pmode == DImode)
|
|
|
|
|
+ emit_insn (gen_auipcdi (temp, copy_rtx (addr), GEN_INT (seqno)));
|
|
|
|
|
+ else
|
|
|
|
|
+ emit_insn (gen_auipcsi (temp, copy_rtx (addr), GEN_INT (seqno)));
|
|
|
|
|
+
|
|
|
|
|
+ *low_out = gen_rtx_LO_SUM (Pmode, temp, label);
|
|
|
|
|
+
|
|
|
|
|
+ seqno++;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ break;
|
|
|
|
|
+
|
|
|
|
|
+ default:
|
|
|
|
|
+ gcc_unreachable ();
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ return true;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return a legitimate address for REG + OFFSET. TEMP is as for
|
|
|
|
|
+ riscv_force_temporary; it is only needed when OFFSET is not a
|
|
|
|
|
+ SMALL_OPERAND. */
|
|
|
|
|
+
|
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_add_offset (rtx temp, rtx reg, HOST_WIDE_INT offset)
|
|
|
|
|
+{
|
|
|
|
|
+ if (!SMALL_OPERAND (offset))
|
|
|
|
|
+ {
|
|
|
|
|
+ rtx high;
|
|
|
|
|
+
|
|
|
|
|
+ /* Leave OFFSET as a 16-bit offset and put the excess in HIGH.
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ The addition inside the macro CONST_HIGH_PART may cause an
|
|
|
|
|
+ overflow, so we need to force a sign-extension check. */
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ high = gen_int_mode (CONST_HIGH_PART (offset), Pmode);
|
|
|
|
|
+ offset = CONST_LOW_PART (offset);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ high = riscv_force_temporary (temp, high);
|
|
|
|
|
+ reg = riscv_force_temporary (temp, gen_rtx_PLUS (Pmode, high, reg));
|
|
|
|
|
+ }
|
|
|
|
|
+ return plus_constant (Pmode, reg, offset);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* The __tls_get_attr symbol. */
|
|
|
|
|
+static GTY(()) rtx riscv_tls_symbol;
|
|
|
|
|
+
|
|
|
|
|
+/* Return an instruction sequence that calls __tls_get_addr. SYM is
|
|
|
|
|
+ the TLS symbol we are referencing and TYPE is the symbol type to use
|
|
|
|
|
+ (either global dynamic or local dynamic). RESULT is an RTX for the
|
|
|
|
|
+ return value location. */
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+static rtx_insn *
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+riscv_call_tls_get_addr (rtx sym, rtx result)
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ rtx a0 = gen_rtx_REG (Pmode, GP_ARG_FIRST), func;
|
|
|
|
|
+ rtx_insn *insn;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ if (!riscv_tls_symbol)
|
|
|
|
|
+ riscv_tls_symbol = init_one_libfunc ("__tls_get_addr");
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ func = gen_rtx_MEM (FUNCTION_MODE, riscv_tls_symbol);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ start_sequence ();
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ emit_insn (riscv_got_load_tls_gd (a0, sym));
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ insn = emit_call_insn (gen_call_value (result, func, const0_rtx, NULL));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ RTL_CONST_CALL_P (insn) = 1;
|
|
|
|
|
+ use_reg (&CALL_INSN_FUNCTION_USAGE (insn), a0);
|
|
|
|
|
+ insn = get_insns ();
|
|
|
|
|
+
|
|
|
|
|
+ end_sequence ();
|
|
|
|
|
+
|
|
|
|
|
+ return insn;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Generate the code to access LOC, a thread-local SYMBOL_REF, and return
|
|
|
|
|
+ its address. The return value will be both a valid address and a valid
|
|
|
|
|
+ SET_SRC (either a REG or a LO_SUM). */
|
|
|
|
|
+
|
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_legitimize_tls_address (rtx loc)
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ rtx dest, tp, tmp;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ enum tls_model model = SYMBOL_REF_TLS_MODEL (loc);
|
|
|
|
|
+
|
|
|
|
|
+ /* Since we support TLS copy relocs, non-PIC TLS accesses may all use LE. */
|
|
|
|
|
+ if (!flag_pic)
|
|
|
|
|
+ model = TLS_MODEL_LOCAL_EXEC;
|
|
|
|
|
+
|
|
|
|
|
+ switch (model)
|
|
|
|
|
+ {
|
|
|
|
|
+ case TLS_MODEL_LOCAL_DYNAMIC:
|
|
|
|
|
+ /* Rely on section anchors for the optimization that LDM TLS
|
|
|
|
|
+ provides. The anchor's address is loaded with GD TLS. */
|
|
|
|
|
+ case TLS_MODEL_GLOBAL_DYNAMIC:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ tmp = gen_rtx_REG (Pmode, GP_RETURN);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ dest = gen_reg_rtx (Pmode);
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ emit_libcall_block (riscv_call_tls_get_addr (loc, tmp), dest, tmp, loc);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ break;
|
|
|
|
|
+
|
|
|
|
|
+ case TLS_MODEL_INITIAL_EXEC:
|
|
|
|
|
+ /* la.tls.ie; tp-relative add */
|
|
|
|
|
+ tp = gen_rtx_REG (Pmode, THREAD_POINTER_REGNUM);
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ tmp = gen_reg_rtx (Pmode);
|
|
|
|
|
+ emit_insn (riscv_got_load_tls_ie (tmp, loc));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ dest = gen_reg_rtx (Pmode);
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ emit_insn (gen_add3_insn (dest, tmp, tp));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ break;
|
|
|
|
|
+
|
|
|
|
|
+ case TLS_MODEL_LOCAL_EXEC:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ tmp = riscv_unspec_offset_high (NULL, loc, SYMBOL_TLS_LE);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ dest = gen_reg_rtx (Pmode);
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ emit_insn (riscv_tls_add_tp_le (dest, tmp, loc));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ dest = gen_rtx_LO_SUM (Pmode, dest,
|
|
|
|
|
+ riscv_unspec_address (loc, SYMBOL_TLS_LE));
|
|
|
|
|
+ break;
|
|
|
|
|
+
|
|
|
|
|
+ default:
|
|
|
|
|
+ gcc_unreachable ();
|
|
|
|
|
+ }
|
|
|
|
|
+ return dest;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* If X is not a valid address for mode MODE, force it into a register. */
|
|
|
|
|
+
|
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_force_address (rtx x, enum machine_mode mode)
|
|
|
|
|
+{
|
|
|
|
|
+ if (!riscv_legitimate_address_p (mode, x, false))
|
|
|
|
|
+ x = force_reg (Pmode, x);
|
|
|
|
|
+ return x;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* This function is used to implement LEGITIMIZE_ADDRESS. If X can
|
|
|
|
|
+ be legitimized in a way that the generic machinery might not expect,
|
|
|
|
|
+ return a new address, otherwise return NULL. MODE is the mode of
|
|
|
|
|
+ the memory being accessed. */
|
|
|
|
|
+
|
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_legitimize_address (rtx x, rtx oldx ATTRIBUTE_UNUSED,
|
|
|
|
|
+ enum machine_mode mode)
|
|
|
|
|
+{
|
|
|
|
|
+ rtx addr;
|
|
|
|
|
+
|
|
|
|
|
+ if (riscv_tls_symbol_p (x))
|
|
|
|
|
+ return riscv_legitimize_tls_address (x);
|
|
|
|
|
+
|
|
|
|
|
+ /* See if the address can split into a high part and a LO_SUM. */
|
|
|
|
|
+ if (riscv_split_symbol (NULL, x, mode, &addr))
|
|
|
|
|
+ return riscv_force_address (addr, mode);
|
|
|
|
|
+
|
|
|
|
|
+ /* Handle BASE + OFFSET using riscv_add_offset. */
|
|
|
|
|
+ if (GET_CODE (x) == PLUS && CONST_INT_P (XEXP (x, 1))
|
|
|
|
|
+ && INTVAL (XEXP (x, 1)) != 0)
|
|
|
|
|
+ {
|
|
|
|
|
+ rtx base = XEXP (x, 0);
|
|
|
|
|
+ HOST_WIDE_INT offset = INTVAL (XEXP (x, 1));
|
|
|
|
|
+
|
|
|
|
|
+ if (!riscv_valid_base_register_p (base, mode, false))
|
|
|
|
|
+ base = copy_to_mode_reg (Pmode, base);
|
|
|
|
|
+ addr = riscv_add_offset (NULL, base, offset);
|
|
|
|
|
+ return riscv_force_address (addr, mode);
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ return x;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Load VALUE into DEST. TEMP is as for riscv_force_temporary. */
|
|
|
|
|
+
|
|
|
|
|
+void
|
|
|
|
|
+riscv_move_integer (rtx temp, rtx dest, HOST_WIDE_INT value)
|
|
|
|
|
+{
|
|
|
|
|
+ struct riscv_integer_op codes[RISCV_MAX_INTEGER_OPS];
|
|
|
|
|
+ enum machine_mode mode;
|
|
|
|
|
+ int i, num_ops;
|
|
|
|
|
+ rtx x;
|
|
|
|
|
+
|
|
|
|
|
+ mode = GET_MODE (dest);
|
|
|
|
|
+ num_ops = riscv_build_integer (codes, value, mode);
|
|
|
|
|
+
|
|
|
|
|
+ if (can_create_pseudo_p () && num_ops > 2 /* not a simple constant */
|
|
|
|
|
+ && num_ops >= riscv_split_integer_cost (value))
|
|
|
|
|
+ x = riscv_split_integer (value, mode);
|
|
|
|
|
+ else
|
|
|
|
|
+ {
|
|
|
|
|
+ /* Apply each binary operation to X. */
|
|
|
|
|
+ x = GEN_INT (codes[0].value);
|
|
|
|
|
+
|
|
|
|
|
+ for (i = 1; i < num_ops; i++)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ {
|
|
|
|
|
+ if (!can_create_pseudo_p ())
|
|
|
|
|
+ x = riscv_emit_set (temp, x);
|
|
|
|
|
+ else
|
|
|
|
|
+ x = force_reg (mode, x);
|
|
|
|
|
+
|
|
|
|
|
+ x = gen_rtx_fmt_ee (codes[i].code, mode, x, GEN_INT (codes[i].value));
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ riscv_emit_set (dest, x);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Subroutine of riscv_legitimize_move. Move constant SRC into register
|
|
|
|
|
+ DEST given that SRC satisfies immediate_operand but doesn't satisfy
|
|
|
|
|
+ move_operand. */
|
|
|
|
|
+
|
|
|
|
|
+static void
|
|
|
|
|
+riscv_legitimize_const_move (enum machine_mode mode, rtx dest, rtx src)
|
|
|
|
|
+{
|
|
|
|
|
+ rtx base, offset;
|
|
|
|
|
+
|
|
|
|
|
+ /* Split moves of big integers into smaller pieces. */
|
|
|
|
|
+ if (splittable_const_int_operand (src, mode))
|
|
|
|
|
+ {
|
|
|
|
|
+ riscv_move_integer (dest, dest, INTVAL (src));
|
|
|
|
|
+ return;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ /* Split moves of symbolic constants into high/low pairs. */
|
|
|
|
|
+ if (riscv_split_symbol (dest, src, MAX_MACHINE_MODE, &src))
|
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ riscv_emit_set (dest, src);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ return;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ /* Generate the appropriate access sequences for TLS symbols. */
|
|
|
|
|
+ if (riscv_tls_symbol_p (src))
|
|
|
|
|
+ {
|
|
|
|
|
+ riscv_emit_move (dest, riscv_legitimize_tls_address (src));
|
|
|
|
|
+ return;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ /* If we have (const (plus symbol offset)), and that expression cannot
|
|
|
|
|
+ be forced into memory, load the symbol first and add in the offset. Also
|
|
|
|
|
+ prefer to do this even if the constant _can_ be forced into memory, as it
|
|
|
|
|
+ usually produces better code. */
|
|
|
|
|
+ split_const (src, &base, &offset);
|
|
|
|
|
+ if (offset != const0_rtx
|
|
|
|
|
+ && (targetm.cannot_force_const_mem (mode, src) || can_create_pseudo_p ()))
|
|
|
|
|
+ {
|
|
|
|
|
+ base = riscv_force_temporary (dest, base);
|
|
|
|
|
+ riscv_emit_move (dest, riscv_add_offset (NULL, base, INTVAL (offset)));
|
|
|
|
|
+ return;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ src = force_const_mem (mode, src);
|
|
|
|
|
+
|
|
|
|
|
+ /* When using explicit relocs, constant pool references are sometimes
|
|
|
|
|
+ not legitimate addresses. */
|
|
|
|
|
+ riscv_split_symbol (dest, XEXP (src, 0), mode, &XEXP (src, 0));
|
|
|
|
|
+ riscv_emit_move (dest, src);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* If (set DEST SRC) is not a valid move instruction, emit an equivalent
|
|
|
|
|
+ sequence that is valid. */
|
|
|
|
|
+
|
|
|
|
|
+bool
|
|
|
|
|
+riscv_legitimize_move (enum machine_mode mode, rtx dest, rtx src)
|
|
|
|
|
+{
|
|
|
|
|
+ if (!register_operand (dest, mode) && !reg_or_0_operand (src, mode))
|
|
|
|
|
+ {
|
|
|
|
|
+ riscv_emit_move (dest, force_reg (mode, src));
|
|
|
|
|
+ return true;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ /* We need to deal with constants that would be legitimate
|
|
|
|
|
+ immediate_operands but aren't legitimate move_operands. */
|
|
|
|
|
+ if (CONSTANT_P (src) && !move_operand (src, mode))
|
|
|
|
|
+ {
|
|
|
|
|
+ riscv_legitimize_const_move (mode, dest, src);
|
|
|
|
|
+ set_unique_reg_note (get_last_insn (), REG_EQUAL, copy_rtx (src));
|
|
|
|
|
+ return true;
|
|
|
|
|
+ }
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ return false;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return true if there is an instruction that implements CODE and accepts
|
|
|
|
|
+ X as an immediate operand. */
|
|
|
|
|
+
|
|
|
|
|
+static int
|
|
|
|
|
+riscv_immediate_operand_p (int code, HOST_WIDE_INT x)
|
|
|
|
|
+{
|
|
|
|
|
+ switch (code)
|
|
|
|
|
+ {
|
|
|
|
|
+ case ASHIFT:
|
|
|
|
|
+ case ASHIFTRT:
|
|
|
|
|
+ case LSHIFTRT:
|
|
|
|
|
+ /* All shift counts are truncated to a valid constant. */
|
|
|
|
|
+ return true;
|
|
|
|
|
+
|
|
|
|
|
+ case AND:
|
|
|
|
|
+ case IOR:
|
|
|
|
|
+ case XOR:
|
|
|
|
|
+ case PLUS:
|
|
|
|
|
+ case LT:
|
|
|
|
|
+ case LTU:
|
|
|
|
|
+ /* These instructions take 12-bit signed immediates. */
|
|
|
|
|
+ return SMALL_OPERAND (x);
|
|
|
|
|
+
|
|
|
|
|
+ case LE:
|
|
|
|
|
+ /* We add 1 to the immediate and use SLT. */
|
|
|
|
|
+ return SMALL_OPERAND (x + 1);
|
|
|
|
|
+
|
|
|
|
|
+ case LEU:
|
|
|
|
|
+ /* Likewise SLTU, but reject the always-true case. */
|
|
|
|
|
+ return SMALL_OPERAND (x + 1) && x + 1 != 0;
|
|
|
|
|
+
|
|
|
|
|
+ case GE:
|
|
|
|
|
+ case GEU:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* We can emulate an immediate of 1 by using GT/GTU against x0. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ return x == 1;
|
|
|
|
|
+
|
|
|
|
|
+ default:
|
|
|
|
|
+ /* By default assume that x0 can be used for 0. */
|
|
|
|
|
+ return x == 0;
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return the cost of binary operation X, given that the instruction
|
|
|
|
|
+ sequence for a word-sized or smaller operation takes SIGNLE_INSNS
|
|
|
|
|
+ instructions and that the sequence of a double-word operation takes
|
|
|
|
|
+ DOUBLE_INSNS instructions. */
|
|
|
|
|
+
|
|
|
|
|
+static int
|
|
|
|
|
+riscv_binary_cost (rtx x, int single_insns, int double_insns)
|
|
|
|
|
+{
|
|
|
|
|
+ if (GET_MODE_SIZE (GET_MODE (x)) == UNITS_PER_WORD * 2)
|
|
|
|
|
+ return COSTS_N_INSNS (double_insns);
|
|
|
|
|
+ return COSTS_N_INSNS (single_insns);
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Return the cost of sign- or zero-extending OP. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+static int
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+riscv_extend_cost (rtx op, bool unsigned_p)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
|
|
|
|
+ if (MEM_P (op))
|
|
|
|
|
+ return 0;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (unsigned_p && GET_MODE (op) == QImode)
|
|
|
|
|
+ /* We can use ANDI. */
|
|
|
|
|
+ return COSTS_N_INSNS (1);
|
|
|
|
|
+
|
|
|
|
|
+ if (!unsigned_p && GET_MODE (op) == SImode)
|
|
|
|
|
+ /* We can use SEXT.W. */
|
|
|
|
|
+ return COSTS_N_INSNS (1);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ /* We need to use a shift left and a shift right. */
|
|
|
|
|
+ return COSTS_N_INSNS (2);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_RTX_COSTS. */
|
|
|
|
|
+
|
|
|
|
|
+static bool
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+riscv_rtx_costs (rtx x, machine_mode mode, int outer_code, int opno ATTRIBUTE_UNUSED,
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ int *total, bool speed)
|
|
|
|
|
+{
|
|
|
|
|
+ bool float_mode_p = FLOAT_MODE_P (mode);
|
|
|
|
|
+ int cost;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ switch (GET_CODE (x))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ {
|
|
|
|
|
+ case CONST_INT:
|
|
|
|
|
+ if (riscv_immediate_operand_p (outer_code, INTVAL (x)))
|
|
|
|
|
+ {
|
|
|
|
|
+ *total = 0;
|
|
|
|
|
+ return true;
|
|
|
|
|
+ }
|
|
|
|
|
+ /* Fall through. */
|
|
|
|
|
+
|
|
|
|
|
+ case SYMBOL_REF:
|
|
|
|
|
+ case LABEL_REF:
|
|
|
|
|
+ case CONST_DOUBLE:
|
|
|
|
|
+ case CONST:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if ((cost = riscv_const_insns (x)) > 0)
|
|
|
|
|
+ {
|
|
|
|
|
+ /* If the constant is likely to be stored in a GPR, SETs of
|
|
|
|
|
+ single-insn constants are as cheap as register sets; we
|
|
|
|
|
+ never want to CSE them. */
|
|
|
|
|
+ if (cost == 1 && outer_code == SET)
|
|
|
|
|
+ *total = 0;
|
|
|
|
|
+ /* When we load a constant more than once, it usually is better
|
|
|
|
|
+ to duplicate the last operation in the sequence than to CSE
|
|
|
|
|
+ the constant itself. */
|
|
|
|
|
+ else if (outer_code == SET || GET_MODE (x) == VOIDmode)
|
|
|
|
|
+ *total = COSTS_N_INSNS (1);
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ else /* The instruction will be fetched from the constant pool. */
|
|
|
|
|
+ *total = COSTS_N_INSNS (riscv_symbol_insns (SYMBOL_ABSOLUTE));
|
|
|
|
|
+ return true;
|
|
|
|
|
+
|
|
|
|
|
+ case MEM:
|
|
|
|
|
+ /* If the address is legitimate, return the number of
|
|
|
|
|
+ instructions it needs. */
|
|
|
|
|
+ if ((cost = riscv_address_insns (XEXP (x, 0), mode, true)) > 0)
|
|
|
|
|
+ {
|
|
|
|
|
+ *total = COSTS_N_INSNS (cost + tune_info->memory_cost);
|
|
|
|
|
+ return true;
|
|
|
|
|
+ }
|
|
|
|
|
+ /* Otherwise use the default handling. */
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ case NOT:
|
|
|
|
|
+ *total = COSTS_N_INSNS (GET_MODE_SIZE (mode) > UNITS_PER_WORD ? 2 : 1);
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ case AND:
|
|
|
|
|
+ case IOR:
|
|
|
|
|
+ case XOR:
|
|
|
|
|
+ /* Double-word operations use two single-word operations. */
|
|
|
|
|
+ *total = riscv_binary_cost (x, 1, 2);
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ case ASHIFT:
|
|
|
|
|
+ case ASHIFTRT:
|
|
|
|
|
+ case LSHIFTRT:
|
|
|
|
|
+ *total = riscv_binary_cost (x, 1, CONSTANT_P (XEXP (x, 1)) ? 4 : 9);
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ case ABS:
|
|
|
|
|
+ *total = COSTS_N_INSNS (float_mode_p ? 1 : 3);
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ case LO_SUM:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ *total = set_src_cost (XEXP (x, 0), mode, speed);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ return true;
|
|
|
|
|
+
|
|
|
|
|
+ case LT:
|
|
|
|
|
+ case LTU:
|
|
|
|
|
+ case LE:
|
|
|
|
|
+ case LEU:
|
|
|
|
|
+ case GT:
|
|
|
|
|
+ case GTU:
|
|
|
|
|
+ case GE:
|
|
|
|
|
+ case GEU:
|
|
|
|
|
+ case EQ:
|
|
|
|
|
+ case NE:
|
|
|
|
|
+ /* Branch comparisons have VOIDmode, so use the first operand's
|
|
|
|
|
+ mode instead. */
|
|
|
|
|
+ mode = GET_MODE (XEXP (x, 0));
|
|
|
|
|
+ if (float_mode_p)
|
|
|
|
|
+ *total = tune_info->fp_add[mode == DFmode];
|
|
|
|
|
+ else
|
|
|
|
|
+ *total = riscv_binary_cost (x, 1, 3);
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ case UNORDERED:
|
|
|
|
|
+ case ORDERED:
|
|
|
|
|
+ /* (FEQ(A, A) & FEQ(B, B)) compared against 0. */
|
|
|
|
|
+ mode = GET_MODE (XEXP (x, 0));
|
|
|
|
|
+ *total = tune_info->fp_add[mode == DFmode] + COSTS_N_INSNS (2);
|
|
|
|
|
+ return false;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ case UNEQ:
|
|
|
|
|
+ case LTGT:
|
|
|
|
|
+ /* (FEQ(A, A) & FEQ(B, B)) compared against FEQ(A, B). */
|
|
|
|
|
+ mode = GET_MODE (XEXP (x, 0));
|
|
|
|
|
+ *total = tune_info->fp_add[mode == DFmode] + COSTS_N_INSNS (3);
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ case UNGE:
|
|
|
|
|
+ case UNGT:
|
|
|
|
|
+ case UNLE:
|
|
|
|
|
+ case UNLT:
|
|
|
|
|
+ /* FLT or FLE, but guarded by an FFLAGS read and write. */
|
|
|
|
|
+ mode = GET_MODE (XEXP (x, 0));
|
|
|
|
|
+ *total = tune_info->fp_add[mode == DFmode] + COSTS_N_INSNS (4);
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ case MINUS:
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ case PLUS:
|
|
|
|
|
+ if (float_mode_p)
|
|
|
|
|
+ *total = tune_info->fp_add[mode == DFmode];
|
|
|
|
|
+ else
|
|
|
|
|
+ *total = riscv_binary_cost (x, 1, 4);
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ case NEG:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ {
|
|
|
|
|
+ rtx op = XEXP (x, 0);
|
|
|
|
|
+ if (GET_CODE (op) == FMA && !HONOR_SIGNED_ZEROS (mode))
|
|
|
|
|
+ {
|
|
|
|
|
+ *total = (tune_info->fp_mul[mode == DFmode]
|
|
|
|
|
+ + set_src_cost (XEXP (op, 0), mode, speed)
|
|
|
|
|
+ + set_src_cost (XEXP (op, 1), mode, speed)
|
|
|
|
|
+ + set_src_cost (XEXP (op, 2), mode, speed));
|
|
|
|
|
+ return true;
|
|
|
|
|
+ }
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ if (float_mode_p)
|
|
|
|
|
+ *total = tune_info->fp_add[mode == DFmode];
|
|
|
|
|
+ else
|
|
|
|
|
+ *total = COSTS_N_INSNS (GET_MODE_SIZE (mode) > UNITS_PER_WORD ? 4 : 1);
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ case MULT:
|
|
|
|
|
+ if (float_mode_p)
|
|
|
|
|
+ *total = tune_info->fp_mul[mode == DFmode];
|
|
|
|
|
+ else if (GET_MODE_SIZE (mode) > UNITS_PER_WORD)
|
|
|
|
|
+ *total = 3 * tune_info->int_mul[0] + COSTS_N_INSNS (2);
|
|
|
|
|
+ else if (!speed)
|
|
|
|
|
+ *total = COSTS_N_INSNS (1);
|
|
|
|
|
+ else
|
|
|
|
|
+ *total = tune_info->int_mul[mode == DImode];
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ case DIV:
|
|
|
|
|
+ case SQRT:
|
|
|
|
|
+ case MOD:
|
|
|
|
|
+ if (float_mode_p)
|
|
|
|
|
+ {
|
|
|
|
|
+ *total = tune_info->fp_div[mode == DFmode];
|
|
|
|
|
+ return false;
|
|
|
|
|
+ }
|
|
|
|
|
+ /* Fall through. */
|
|
|
|
|
+
|
|
|
|
|
+ case UDIV:
|
|
|
|
|
+ case UMOD:
|
|
|
|
|
+ if (speed)
|
|
|
|
|
+ *total = tune_info->int_div[mode == DImode];
|
|
|
|
|
+ else
|
|
|
|
|
+ *total = COSTS_N_INSNS (1);
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ case SIGN_EXTEND:
|
|
|
|
|
+ case ZERO_EXTEND:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ *total = riscv_extend_cost (XEXP (x, 0), GET_CODE (x) == ZERO_EXTEND);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ case FLOAT:
|
|
|
|
|
+ case UNSIGNED_FLOAT:
|
|
|
|
|
+ case FIX:
|
|
|
|
|
+ case FLOAT_EXTEND:
|
|
|
|
|
+ case FLOAT_TRUNCATE:
|
|
|
|
|
+ *total = tune_info->fp_add[mode == DFmode];
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ case FMA:
|
|
|
|
|
+ *total = (tune_info->fp_mul[mode == DFmode]
|
|
|
|
|
+ + set_src_cost (XEXP (x, 0), mode, speed)
|
|
|
|
|
+ + set_src_cost (XEXP (x, 1), mode, speed)
|
|
|
|
|
+ + set_src_cost (XEXP (x, 2), mode, speed));
|
|
|
|
|
+ return true;
|
|
|
|
|
+
|
|
|
|
|
+ case UNSPEC:
|
|
|
|
|
+ if (XINT (x, 1) == UNSPEC_AUIPC)
|
|
|
|
|
+ {
|
|
|
|
|
+ /* Make AUIPC cheap to avoid spilling its result to the stack. */
|
|
|
|
|
+ *total = 1;
|
|
|
|
|
+ return true;
|
|
|
|
|
+ }
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ default:
|
|
|
|
|
+ return false;
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_ADDRESS_COST. */
|
|
|
|
|
+
|
|
|
|
|
+static int
|
|
|
|
|
+riscv_address_cost (rtx addr, enum machine_mode mode,
|
|
|
|
|
+ addr_space_t as ATTRIBUTE_UNUSED,
|
|
|
|
|
+ bool speed ATTRIBUTE_UNUSED)
|
|
|
|
|
+{
|
|
|
|
|
+ return riscv_address_insns (addr, mode, false);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return one word of double-word value OP. HIGH_P is true to select the
|
|
|
|
|
+ high part or false to select the low part. */
|
|
|
|
|
+
|
|
|
|
|
+rtx
|
|
|
|
|
+riscv_subword (rtx op, bool high_p)
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ unsigned int byte = high_p ? UNITS_PER_WORD : 0;
|
|
|
|
|
+ enum machine_mode mode = GET_MODE (op);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ if (mode == VOIDmode)
|
|
|
|
|
+ mode = TARGET_64BIT ? TImode : DImode;
|
|
|
|
|
+
|
|
|
|
|
+ if (MEM_P (op))
|
|
|
|
|
+ return adjust_address (op, word_mode, byte);
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (REG_P (op))
|
|
|
|
|
+ gcc_assert (!FP_REG_RTX_P (op));
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ return simplify_gen_subreg (word_mode, op, mode, byte);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return true if a 64-bit move from SRC to DEST should be split into two. */
|
|
|
|
|
+
|
|
|
|
|
+bool
|
|
|
|
|
+riscv_split_64bit_move_p (rtx dest, rtx src)
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (TARGET_64BIT)
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ /* Allow FPR <-> FPR and FPR <-> MEM moves, and permit the special case
|
|
|
|
|
+ of zeroing an FPR with FCVT.D.W. */
|
|
|
|
|
+ if (TARGET_DOUBLE_FLOAT
|
|
|
|
|
+ && ((FP_REG_RTX_P (src) && FP_REG_RTX_P (dest))
|
|
|
|
|
+ || (FP_REG_RTX_P (dest) && MEM_P (src))
|
|
|
|
|
+ || (FP_REG_RTX_P (src) && MEM_P (dest))
|
|
|
|
|
+ || (FP_REG_RTX_P (dest) && src == CONST0_RTX (GET_MODE (src)))))
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ return true;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Split a doubleword move from SRC to DEST. On 32-bit targets,
|
|
|
|
|
+ this function handles 64-bit moves for which riscv_split_64bit_move_p
|
|
|
|
|
+ holds. For 64-bit targets, this function handles 128-bit moves. */
|
|
|
|
|
+
|
|
|
|
|
+void
|
|
|
|
|
+riscv_split_doubleword_move (rtx dest, rtx src)
|
|
|
|
|
+{
|
|
|
|
|
+ rtx low_dest;
|
|
|
|
|
+
|
|
|
|
|
+ /* The operation can be split into two normal moves. Decide in
|
|
|
|
|
+ which order to do them. */
|
|
|
|
|
+ low_dest = riscv_subword (dest, false);
|
|
|
|
|
+ if (REG_P (low_dest) && reg_overlap_mentioned_p (low_dest, src))
|
|
|
|
|
+ {
|
|
|
|
|
+ riscv_emit_move (riscv_subword (dest, true), riscv_subword (src, true));
|
|
|
|
|
+ riscv_emit_move (low_dest, riscv_subword (src, false));
|
|
|
|
|
+ }
|
|
|
|
|
+ else
|
|
|
|
|
+ {
|
|
|
|
|
+ riscv_emit_move (low_dest, riscv_subword (src, false));
|
|
|
|
|
+ riscv_emit_move (riscv_subword (dest, true), riscv_subword (src, true));
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return the appropriate instructions to move SRC into DEST. Assume
|
|
|
|
|
+ that SRC is operand 1 and DEST is operand 0. */
|
|
|
|
|
+
|
|
|
|
|
+const char *
|
|
|
|
|
+riscv_output_move (rtx dest, rtx src)
|
|
|
|
|
+{
|
|
|
|
|
+ enum rtx_code dest_code, src_code;
|
|
|
|
|
+ enum machine_mode mode;
|
|
|
|
|
+ bool dbl_p;
|
|
|
|
|
+
|
|
|
|
|
+ dest_code = GET_CODE (dest);
|
|
|
|
|
+ src_code = GET_CODE (src);
|
|
|
|
|
+ mode = GET_MODE (dest);
|
|
|
|
|
+ dbl_p = (GET_MODE_SIZE (mode) == 8);
|
|
|
|
|
+
|
|
|
|
|
+ if (dbl_p && riscv_split_64bit_move_p (dest, src))
|
|
|
|
|
+ return "#";
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ if (dest_code == REG && GP_REG_P (REGNO (dest)))
|
|
|
|
|
+ {
|
|
|
|
|
+ if (src_code == REG && FP_REG_P (REGNO (src)))
|
|
|
|
|
+ return dbl_p ? "fmv.x.d\t%0,%1" : "fmv.x.s\t%0,%1";
|
|
|
|
|
+
|
|
|
|
|
+ if (src_code == MEM)
|
|
|
|
|
+ switch (GET_MODE_SIZE (mode))
|
|
|
|
|
+ {
|
|
|
|
|
+ case 1: return "lbu\t%0,%1";
|
|
|
|
|
+ case 2: return "lhu\t%0,%1";
|
|
|
|
|
+ case 4: return "lw\t%0,%1";
|
|
|
|
|
+ case 8: return "ld\t%0,%1";
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ if (src_code == CONST_INT)
|
|
|
|
|
+ return "li\t%0,%1";
|
|
|
|
|
+
|
|
|
|
|
+ if (src_code == HIGH)
|
|
|
|
|
+ return "lui\t%0,%h1";
|
|
|
|
|
+
|
|
|
|
|
+ if (symbolic_operand (src, VOIDmode))
|
|
|
|
|
+ switch (riscv_classify_symbolic_expression (src))
|
|
|
|
|
+ {
|
|
|
|
|
+ case SYMBOL_GOT_DISP: return "la\t%0,%1";
|
|
|
|
|
+ case SYMBOL_ABSOLUTE: return "lla\t%0,%1";
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ case SYMBOL_PCREL: return "lla\t%0,%1";
|
|
|
|
|
+ default: gcc_unreachable ();
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ }
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ if ((src_code == REG && GP_REG_P (REGNO (src)))
|
|
|
|
|
+ || (src == CONST0_RTX (mode)))
|
|
|
|
|
+ {
|
|
|
|
|
+ if (dest_code == REG)
|
|
|
|
|
+ {
|
|
|
|
|
+ if (GP_REG_P (REGNO (dest)))
|
|
|
|
|
+ return "mv\t%0,%z1";
|
|
|
|
|
+
|
|
|
|
|
+ if (FP_REG_P (REGNO (dest)))
|
|
|
|
|
+ {
|
|
|
|
|
+ if (!dbl_p)
|
|
|
|
|
+ return "fmv.s.x\t%0,%z1";
|
|
|
|
|
+ if (TARGET_64BIT)
|
|
|
|
|
+ return "fmv.d.x\t%0,%z1";
|
|
|
|
|
+ /* in RV32, we can emulate fmv.d.x %0, x0 using fcvt.d.w */
|
|
|
|
|
+ gcc_assert (src == CONST0_RTX (mode));
|
|
|
|
|
+ return "fcvt.d.w\t%0,x0";
|
|
|
|
|
+ }
|
|
|
|
|
+ }
|
|
|
|
|
+ if (dest_code == MEM)
|
|
|
|
|
+ switch (GET_MODE_SIZE (mode))
|
|
|
|
|
+ {
|
|
|
|
|
+ case 1: return "sb\t%z1,%0";
|
|
|
|
|
+ case 2: return "sh\t%z1,%0";
|
|
|
|
|
+ case 4: return "sw\t%z1,%0";
|
|
|
|
|
+ case 8: return "sd\t%z1,%0";
|
|
|
|
|
+ }
|
|
|
|
|
+ }
|
|
|
|
|
+ if (src_code == REG && FP_REG_P (REGNO (src)))
|
|
|
|
|
+ {
|
|
|
|
|
+ if (dest_code == REG && FP_REG_P (REGNO (dest)))
|
|
|
|
|
+ return dbl_p ? "fmv.d\t%0,%1" : "fmv.s\t%0,%1";
|
|
|
|
|
+
|
|
|
|
|
+ if (dest_code == MEM)
|
|
|
|
|
+ return dbl_p ? "fsd\t%1,%0" : "fsw\t%1,%0";
|
|
|
|
|
+ }
|
|
|
|
|
+ if (dest_code == REG && FP_REG_P (REGNO (dest)))
|
|
|
|
|
+ {
|
|
|
|
|
+ if (src_code == MEM)
|
|
|
|
|
+ return dbl_p ? "fld\t%0,%1" : "flw\t%0,%1";
|
|
|
|
|
+ }
|
|
|
|
|
+ gcc_unreachable ();
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return true if CMP1 is a suitable second operand for integer ordering
|
|
|
|
|
+ test CODE. See also the *sCC patterns in riscv.md. */
|
|
|
|
|
+
|
|
|
|
|
+static bool
|
|
|
|
|
+riscv_int_order_operand_ok_p (enum rtx_code code, rtx cmp1)
|
|
|
|
|
+{
|
|
|
|
|
+ switch (code)
|
|
|
|
|
+ {
|
|
|
|
|
+ case GT:
|
|
|
|
|
+ case GTU:
|
|
|
|
|
+ return reg_or_0_operand (cmp1, VOIDmode);
|
|
|
|
|
+
|
|
|
|
|
+ case GE:
|
|
|
|
|
+ case GEU:
|
|
|
|
|
+ return cmp1 == const1_rtx;
|
|
|
|
|
+
|
|
|
|
|
+ case LT:
|
|
|
|
|
+ case LTU:
|
|
|
|
|
+ return arith_operand (cmp1, VOIDmode);
|
|
|
|
|
+
|
|
|
|
|
+ case LE:
|
|
|
|
|
+ return sle_operand (cmp1, VOIDmode);
|
|
|
|
|
+
|
|
|
|
|
+ case LEU:
|
|
|
|
|
+ return sleu_operand (cmp1, VOIDmode);
|
|
|
|
|
+
|
|
|
|
|
+ default:
|
|
|
|
|
+ gcc_unreachable ();
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return true if *CMP1 (of mode MODE) is a valid second operand for
|
|
|
|
|
+ integer ordering test *CODE, or if an equivalent combination can
|
|
|
|
|
+ be formed by adjusting *CODE and *CMP1. When returning true, update
|
|
|
|
|
+ *CODE and *CMP1 with the chosen code and operand, otherwise leave
|
|
|
|
|
+ them alone. */
|
|
|
|
|
+
|
|
|
|
|
+static bool
|
|
|
|
|
+riscv_canonicalize_int_order_test (enum rtx_code *code, rtx *cmp1,
|
|
|
|
|
+ enum machine_mode mode)
|
|
|
|
|
+{
|
|
|
|
|
+ HOST_WIDE_INT plus_one;
|
|
|
|
|
+
|
|
|
|
|
+ if (riscv_int_order_operand_ok_p (*code, *cmp1))
|
|
|
|
|
+ return true;
|
|
|
|
|
+
|
|
|
|
|
+ if (CONST_INT_P (*cmp1))
|
|
|
|
|
+ switch (*code)
|
|
|
|
|
+ {
|
|
|
|
|
+ case LE:
|
|
|
|
|
+ plus_one = trunc_int_for_mode (UINTVAL (*cmp1) + 1, mode);
|
|
|
|
|
+ if (INTVAL (*cmp1) < plus_one)
|
|
|
|
|
+ {
|
|
|
|
|
+ *code = LT;
|
|
|
|
|
+ *cmp1 = force_reg (mode, GEN_INT (plus_one));
|
|
|
|
|
+ return true;
|
|
|
|
|
+ }
|
|
|
|
|
+ break;
|
|
|
|
|
+
|
|
|
|
|
+ case LEU:
|
|
|
|
|
+ plus_one = trunc_int_for_mode (UINTVAL (*cmp1) + 1, mode);
|
|
|
|
|
+ if (plus_one != 0)
|
|
|
|
|
+ {
|
|
|
|
|
+ *code = LTU;
|
|
|
|
|
+ *cmp1 = force_reg (mode, GEN_INT (plus_one));
|
|
|
|
|
+ return true;
|
|
|
|
|
+ }
|
|
|
|
|
+ break;
|
|
|
|
|
+
|
|
|
|
|
+ default:
|
|
|
|
|
+ break;
|
|
|
|
|
+ }
|
|
|
|
|
+ return false;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Compare CMP0 and CMP1 using ordering test CODE and store the result
|
|
|
|
|
+ in TARGET. CMP0 and TARGET are register_operands. If INVERT_PTR
|
|
|
|
|
+ is nonnull, it's OK to set TARGET to the inverse of the result and
|
|
|
|
|
+ flip *INVERT_PTR instead. */
|
|
|
|
|
+
|
|
|
|
|
+static void
|
|
|
|
|
+riscv_emit_int_order_test (enum rtx_code code, bool *invert_ptr,
|
|
|
|
|
+ rtx target, rtx cmp0, rtx cmp1)
|
|
|
|
|
+{
|
|
|
|
|
+ enum machine_mode mode;
|
|
|
|
|
+
|
|
|
|
|
+ /* First see if there is a RISCV instruction that can do this operation.
|
|
|
|
|
+ If not, try doing the same for the inverse operation. If that also
|
|
|
|
|
+ fails, force CMP1 into a register and try again. */
|
|
|
|
|
+ mode = GET_MODE (cmp0);
|
|
|
|
|
+ if (riscv_canonicalize_int_order_test (&code, &cmp1, mode))
|
|
|
|
|
+ riscv_emit_binary (code, target, cmp0, cmp1);
|
|
|
|
|
+ else
|
|
|
|
|
+ {
|
|
|
|
|
+ enum rtx_code inv_code = reverse_condition (code);
|
|
|
|
|
+ if (!riscv_canonicalize_int_order_test (&inv_code, &cmp1, mode))
|
|
|
|
|
+ {
|
|
|
|
|
+ cmp1 = force_reg (mode, cmp1);
|
|
|
|
|
+ riscv_emit_int_order_test (code, invert_ptr, target, cmp0, cmp1);
|
|
|
|
|
+ }
|
|
|
|
|
+ else if (invert_ptr == 0)
|
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ rtx inv_target = riscv_force_binary (GET_MODE (target),
|
|
|
|
|
+ inv_code, cmp0, cmp1);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ riscv_emit_binary (XOR, target, inv_target, const1_rtx);
|
|
|
|
|
+ }
|
|
|
|
|
+ else
|
|
|
|
|
+ {
|
|
|
|
|
+ *invert_ptr = !*invert_ptr;
|
|
|
|
|
+ riscv_emit_binary (inv_code, target, cmp0, cmp1);
|
|
|
|
|
+ }
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return a register that is zero iff CMP0 and CMP1 are equal.
|
|
|
|
|
+ The register will have the same mode as CMP0. */
|
|
|
|
|
+
|
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_zero_if_equal (rtx cmp0, rtx cmp1)
|
|
|
|
|
+{
|
|
|
|
|
+ if (cmp1 == const0_rtx)
|
|
|
|
|
+ return cmp0;
|
|
|
|
|
+
|
|
|
|
|
+ return expand_binop (GET_MODE (cmp0), sub_optab,
|
|
|
|
|
+ cmp0, cmp1, 0, 0, OPTAB_DIRECT);
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Sign- or zero-extend OP0 and OP1 for integer comparisons. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+static void
|
|
|
|
|
+riscv_extend_comparands (rtx_code code, rtx *op0, rtx *op1)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Comparisons consider all XLEN bits, so extend sub-XLEN values. */
|
|
|
|
|
+ if (GET_MODE_SIZE (word_mode) > GET_MODE_SIZE (GET_MODE (*op0)))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* It is more profitable to zero-extend QImode values. */
|
|
|
|
|
+ if (unsigned_condition (code) == code && GET_MODE (*op0) == QImode)
|
|
|
|
|
+ {
|
|
|
|
|
+ *op0 = gen_rtx_ZERO_EXTEND (word_mode, *op0);
|
|
|
|
|
+ if (CONST_INT_P (*op1))
|
|
|
|
|
+ *op1 = GEN_INT ((uint8_t) INTVAL (*op1));
|
|
|
|
|
+ else
|
|
|
|
|
+ *op1 = gen_rtx_ZERO_EXTEND (word_mode, *op1);
|
|
|
|
|
+ }
|
|
|
|
|
+ else
|
|
|
|
|
+ {
|
|
|
|
|
+ *op0 = gen_rtx_SIGN_EXTEND (word_mode, *op0);
|
|
|
|
|
+ if (*op1 != const0_rtx)
|
|
|
|
|
+ *op1 = gen_rtx_SIGN_EXTEND (word_mode, *op1);
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Convert a comparison into something that can be used in a branch. On
|
|
|
|
|
+ entry, *OP0 and *OP1 are the values being compared and *CODE is the code
|
|
|
|
|
+ used to compare them. Update them to describe the final comparison. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+static void
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+riscv_emit_int_compare (enum rtx_code *code, rtx *op0, rtx *op1)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (splittable_const_int_operand (*op1, VOIDmode))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ HOST_WIDE_INT rhs = INTVAL (*op1);
|
|
|
|
|
+
|
|
|
|
|
+ if (*code == EQ || *code == NE)
|
|
|
|
|
+ {
|
|
|
|
|
+ /* Convert e.g. OP0 == 2048 into OP0 - 2048 == 0. */
|
|
|
|
|
+ if (SMALL_OPERAND (-rhs))
|
|
|
|
|
+ {
|
|
|
|
|
+ *op0 = riscv_force_binary (GET_MODE (*op0), PLUS, *op0,
|
|
|
|
|
+ GEN_INT (-rhs));
|
|
|
|
|
+ *op1 = const0_rtx;
|
|
|
|
|
+ }
|
|
|
|
|
+ }
|
|
|
|
|
+ else
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ static const enum rtx_code mag_comparisons[][2] = {
|
|
|
|
|
+ {LEU, LTU}, {GTU, GEU}, {LE, LT}, {GT, GE}
|
|
|
|
|
+ };
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Convert e.g. (OP0 <= 0xFFF) into (OP0 < 0x1000). */
|
|
|
|
|
+ for (size_t i = 0; i < ARRAY_SIZE (mag_comparisons); i++)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ HOST_WIDE_INT new_rhs;
|
|
|
|
|
+ bool increment = *code == mag_comparisons[i][0];
|
|
|
|
|
+ bool decrement = *code == mag_comparisons[i][1];
|
|
|
|
|
+ if (!increment && !decrement)
|
|
|
|
|
+ continue;
|
|
|
|
|
+
|
|
|
|
|
+ new_rhs = rhs + (increment ? 1 : -1);
|
|
|
|
|
+ if (riscv_integer_cost (new_rhs) < riscv_integer_cost (rhs)
|
|
|
|
|
+ && (rhs < 0) == (new_rhs < 0))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ {
|
|
|
|
|
+ *op1 = GEN_INT (new_rhs);
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ *code = mag_comparisons[i][increment];
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+ break;
|
|
|
|
|
+ }
|
|
|
|
|
+ }
|
|
|
|
|
+ }
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+
|
|
|
|
|
+ riscv_extend_comparands (*code, op0, op1);
|
|
|
|
|
+
|
|
|
|
|
+ *op0 = force_reg (word_mode, *op0);
|
|
|
|
|
+ if (*op1 != const0_rtx)
|
|
|
|
|
+ *op1 = force_reg (word_mode, *op1);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Like riscv_emit_int_compare, but for floating-point comparisons. */
|
|
|
|
|
+
|
|
|
|
|
+static void
|
|
|
|
|
+riscv_emit_float_compare (enum rtx_code *code, rtx *op0, rtx *op1)
|
|
|
|
|
+{
|
|
|
|
|
+ rtx tmp0, tmp1, cmp_op0 = *op0, cmp_op1 = *op1;
|
|
|
|
|
+ enum rtx_code fp_code = *code;
|
|
|
|
|
+ *code = NE;
|
|
|
|
|
+
|
|
|
|
|
+ switch (fp_code)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ case UNORDERED:
|
|
|
|
|
+ *code = EQ;
|
|
|
|
|
+ /* Fall through. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ case ORDERED:
|
|
|
|
|
+ /* a == a && b == b */
|
|
|
|
|
+ tmp0 = riscv_force_binary (word_mode, EQ, cmp_op0, cmp_op0);
|
|
|
|
|
+ tmp1 = riscv_force_binary (word_mode, EQ, cmp_op1, cmp_op1);
|
|
|
|
|
+ *op0 = riscv_force_binary (word_mode, AND, tmp0, tmp1);
|
|
|
|
|
+ *op1 = const0_rtx;
|
|
|
|
|
+ break;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ case UNEQ:
|
|
|
|
|
+ case LTGT:
|
|
|
|
|
+ /* ordered(a, b) > (a == b) */
|
|
|
|
|
+ *code = fp_code == LTGT ? GTU : EQ;
|
|
|
|
|
+ tmp0 = riscv_force_binary (word_mode, EQ, cmp_op0, cmp_op0);
|
|
|
|
|
+ tmp1 = riscv_force_binary (word_mode, EQ, cmp_op1, cmp_op1);
|
|
|
|
|
+ *op0 = riscv_force_binary (word_mode, AND, tmp0, tmp1);
|
|
|
|
|
+ *op1 = riscv_force_binary (word_mode, EQ, cmp_op0, cmp_op1);
|
|
|
|
|
+ break;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define UNORDERED_COMPARISON(CODE, CMP) \
|
|
|
|
|
+ case CODE: \
|
|
|
|
|
+ *code = EQ; \
|
|
|
|
|
+ *op0 = gen_reg_rtx (word_mode); \
|
|
|
|
|
+ if (GET_MODE (cmp_op0) == SFmode && TARGET_64BIT) \
|
|
|
|
|
+ emit_insn (gen_f##CMP##_quietsfdi4 (*op0, cmp_op0, cmp_op1)); \
|
|
|
|
|
+ else if (GET_MODE (cmp_op0) == SFmode) \
|
|
|
|
|
+ emit_insn (gen_f##CMP##_quietsfsi4 (*op0, cmp_op0, cmp_op1)); \
|
|
|
|
|
+ else if (GET_MODE (cmp_op0) == DFmode && TARGET_64BIT) \
|
|
|
|
|
+ emit_insn (gen_f##CMP##_quietdfdi4 (*op0, cmp_op0, cmp_op1)); \
|
|
|
|
|
+ else if (GET_MODE (cmp_op0) == DFmode) \
|
|
|
|
|
+ emit_insn (gen_f##CMP##_quietdfsi4 (*op0, cmp_op0, cmp_op1)); \
|
|
|
|
|
+ else \
|
|
|
|
|
+ gcc_unreachable (); \
|
|
|
|
|
+ *op1 = const0_rtx; \
|
|
|
|
|
+ break;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ case UNLT:
|
|
|
|
|
+ std::swap (cmp_op0, cmp_op1);
|
|
|
|
|
+ /* Fall through. */
|
|
|
|
|
+
|
|
|
|
|
+ UNORDERED_COMPARISON(UNGT, le)
|
|
|
|
|
+
|
|
|
|
|
+ case UNLE:
|
|
|
|
|
+ std::swap (cmp_op0, cmp_op1);
|
|
|
|
|
+ /* Fall through. */
|
|
|
|
|
+
|
|
|
|
|
+ UNORDERED_COMPARISON(UNGE, lt)
|
|
|
|
|
+#undef UNORDERED_COMPARISON
|
|
|
|
|
+
|
|
|
|
|
+ case NE:
|
|
|
|
|
+ fp_code = EQ;
|
|
|
|
|
+ *code = EQ;
|
|
|
|
|
+ /* Fall through. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ case EQ:
|
|
|
|
|
+ case LE:
|
|
|
|
|
+ case LT:
|
|
|
|
|
+ case GE:
|
|
|
|
|
+ case GT:
|
|
|
|
|
+ /* We have instructions for these cases. */
|
|
|
|
|
+ *op0 = riscv_force_binary (word_mode, fp_code, cmp_op0, cmp_op1);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ *op1 = const0_rtx;
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ break;
|
|
|
|
|
+
|
|
|
|
|
+ default:
|
|
|
|
|
+ gcc_unreachable ();
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* CODE-compare OP0 and OP1. Store the result in TARGET. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+void
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+riscv_expand_int_scc (rtx target, enum rtx_code code, rtx op0, rtx op1)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ riscv_extend_comparands (code, &op0, &op1);
|
|
|
|
|
+ op0 = force_reg (word_mode, op0);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ if (code == EQ || code == NE)
|
|
|
|
|
+ {
|
|
|
|
|
+ rtx zie = riscv_zero_if_equal (op0, op1);
|
|
|
|
|
+ riscv_emit_binary (code, target, zie, const0_rtx);
|
|
|
|
|
+ }
|
|
|
|
|
+ else
|
|
|
|
|
+ riscv_emit_int_order_test (code, 0, target, op0, op1);
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Like riscv_expand_int_scc, but for floating-point comparisons. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+void
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+riscv_expand_float_scc (rtx target, enum rtx_code code, rtx op0, rtx op1)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ riscv_emit_float_compare (&code, &op0, &op1);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ rtx cmp = riscv_force_binary (word_mode, code, op0, op1);
|
|
|
|
|
+ riscv_emit_set (target, lowpart_subreg (SImode, cmp, word_mode));
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Jump to LABEL if (CODE OP0 OP1) holds. */
|
|
|
|
|
+
|
|
|
|
|
+void
|
|
|
|
|
+riscv_expand_conditional_branch (rtx label, rtx_code code, rtx op0, rtx op1)
|
|
|
|
|
+{
|
|
|
|
|
+ if (FLOAT_MODE_P (GET_MODE (op1)))
|
|
|
|
|
+ riscv_emit_float_compare (&code, &op0, &op1);
|
|
|
|
|
+ else
|
|
|
|
|
+ riscv_emit_int_compare (&code, &op0, &op1);
|
|
|
|
|
+
|
|
|
|
|
+ rtx condition = gen_rtx_fmt_ee (code, VOIDmode, op0, op1);
|
|
|
|
|
+ emit_jump_insn (gen_condjump (condition, label));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_FUNCTION_ARG_BOUNDARY. Every parameter gets at
|
|
|
|
|
+ least PARM_BOUNDARY bits of alignment, but will be given anything up
|
|
|
|
|
+ to STACK_BOUNDARY bits if the type requires it. */
|
|
|
|
|
+
|
|
|
|
|
+static unsigned int
|
|
|
|
|
+riscv_function_arg_boundary (enum machine_mode mode, const_tree type)
|
|
|
|
|
+{
|
|
|
|
|
+ unsigned int alignment;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Use natural alignment if the type is not aggregate data. */
|
|
|
|
|
+ if (type && !AGGREGATE_TYPE_P (type))
|
|
|
|
|
+ alignment = TYPE_ALIGN (TYPE_MAIN_VARIANT (type));
|
|
|
|
|
+ else
|
|
|
|
|
+ alignment = type ? TYPE_ALIGN (type) : GET_MODE_ALIGNMENT (mode);
|
|
|
|
|
+
|
|
|
|
|
+ return MIN (STACK_BOUNDARY, MAX (PARM_BOUNDARY, alignment));
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* If MODE represents an argument that can be passed or returned in
|
|
|
|
|
+ floating-point registers, return the number of registers, else 0. */
|
|
|
|
|
+
|
|
|
|
|
+static unsigned
|
|
|
|
|
+riscv_pass_mode_in_fpr_p (enum machine_mode mode)
|
|
|
|
|
+{
|
|
|
|
|
+ if (GET_MODE_UNIT_SIZE (mode) <= UNITS_PER_FP_ARG)
|
|
|
|
|
+ {
|
|
|
|
|
+ if (GET_MODE_CLASS (mode) == MODE_FLOAT)
|
|
|
|
|
+ return 1;
|
|
|
|
|
+
|
|
|
|
|
+ if (GET_MODE_CLASS (mode) == MODE_COMPLEX_FLOAT)
|
|
|
|
|
+ return 2;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ return 0;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+typedef struct {
|
|
|
|
|
+ const_tree type;
|
|
|
|
|
+ HOST_WIDE_INT offset;
|
|
|
|
|
+} riscv_aggregate_field;
|
|
|
|
|
+
|
|
|
|
|
+/* Identify subfields of aggregates that are candidates for passing in
|
|
|
|
|
+ floating-point registers. */
|
|
|
|
|
+
|
|
|
|
|
+static int
|
|
|
|
|
+riscv_flatten_aggregate_field (const_tree type,
|
|
|
|
|
+ riscv_aggregate_field fields[2],
|
|
|
|
|
+ int n, HOST_WIDE_INT offset)
|
|
|
|
|
+{
|
|
|
|
|
+ switch (TREE_CODE (type))
|
|
|
|
|
+ {
|
|
|
|
|
+ case RECORD_TYPE:
|
|
|
|
|
+ /* Can't handle incomplete types nor sizes that are not fixed. */
|
|
|
|
|
+ if (!COMPLETE_TYPE_P (type)
|
|
|
|
|
+ || TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST
|
|
|
|
|
+ || !tree_fits_uhwi_p (TYPE_SIZE (type)))
|
|
|
|
|
+ return -1;
|
|
|
|
|
+
|
|
|
|
|
+ for (tree f = TYPE_FIELDS (type); f; f = DECL_CHAIN (f))
|
|
|
|
|
+ if (TREE_CODE (f) == FIELD_DECL)
|
|
|
|
|
+ {
|
|
|
|
|
+ if (!TYPE_P (TREE_TYPE (f)))
|
|
|
|
|
+ return -1;
|
|
|
|
|
+
|
|
|
|
|
+ HOST_WIDE_INT pos = offset + int_byte_position (f);
|
|
|
|
|
+ n = riscv_flatten_aggregate_field (TREE_TYPE (f), fields, n, pos);
|
|
|
|
|
+ if (n < 0)
|
|
|
|
|
+ return -1;
|
|
|
|
|
+ }
|
|
|
|
|
+ return n;
|
|
|
|
|
+
|
|
|
|
|
+ case ARRAY_TYPE:
|
|
|
|
|
+ {
|
|
|
|
|
+ HOST_WIDE_INT n_elts;
|
|
|
|
|
+ riscv_aggregate_field subfields[2];
|
|
|
|
|
+ tree index = TYPE_DOMAIN (type);
|
|
|
|
|
+ tree elt_size = TYPE_SIZE_UNIT (TREE_TYPE (type));
|
|
|
|
|
+ int n_subfields = riscv_flatten_aggregate_field (TREE_TYPE (type),
|
|
|
|
|
+ subfields, 0, offset);
|
|
|
|
|
+
|
|
|
|
|
+ /* Can't handle incomplete types nor sizes that are not fixed. */
|
|
|
|
|
+ if (n_subfields <= 0
|
|
|
|
|
+ || !COMPLETE_TYPE_P (type)
|
|
|
|
|
+ || TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST
|
|
|
|
|
+ || !index
|
|
|
|
|
+ || !TYPE_MAX_VALUE (index)
|
|
|
|
|
+ || !tree_fits_uhwi_p (TYPE_MAX_VALUE (index))
|
|
|
|
|
+ || !TYPE_MIN_VALUE (index)
|
|
|
|
|
+ || !tree_fits_uhwi_p (TYPE_MIN_VALUE (index))
|
|
|
|
|
+ || !tree_fits_uhwi_p (elt_size))
|
|
|
|
|
+ return -1;
|
|
|
|
|
+
|
|
|
|
|
+ n_elts = 1 + tree_to_uhwi (TYPE_MAX_VALUE (index))
|
|
|
|
|
+ - tree_to_uhwi (TYPE_MIN_VALUE (index));
|
|
|
|
|
+ gcc_assert (n_elts >= 0);
|
|
|
|
|
+
|
|
|
|
|
+ for (HOST_WIDE_INT i = 0; i < n_elts; i++)
|
|
|
|
|
+ for (int j = 0; j < n_subfields; j++)
|
|
|
|
|
+ {
|
|
|
|
|
+ if (n >= 2)
|
|
|
|
|
+ return -1;
|
|
|
|
|
+
|
|
|
|
|
+ fields[n] = subfields[j];
|
|
|
|
|
+ fields[n++].offset += i * tree_to_uhwi (elt_size);
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ return n;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ case COMPLEX_TYPE:
|
|
|
|
|
+ {
|
|
|
|
|
+ /* Complex type need consume 2 field, so n must be 0. */
|
|
|
|
|
+ if (n != 0)
|
|
|
|
|
+ return -1;
|
|
|
|
|
+
|
|
|
|
|
+ HOST_WIDE_INT elt_size = GET_MODE_SIZE (TYPE_MODE (TREE_TYPE (type)));
|
|
|
|
|
+
|
|
|
|
|
+ if (elt_size <= UNITS_PER_FP_ARG)
|
|
|
|
|
+ {
|
|
|
|
|
+ fields[0].type = TREE_TYPE (type);
|
|
|
|
|
+ fields[0].offset = offset;
|
|
|
|
|
+ fields[1].type = TREE_TYPE (type);
|
|
|
|
|
+ fields[1].offset = offset + elt_size;
|
|
|
|
|
+
|
|
|
|
|
+ return 2;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ return -1;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ default:
|
|
|
|
|
+ if (n < 2
|
|
|
|
|
+ && ((SCALAR_FLOAT_TYPE_P (type)
|
|
|
|
|
+ && GET_MODE_SIZE (TYPE_MODE (type)) <= UNITS_PER_FP_ARG)
|
|
|
|
|
+ || (INTEGRAL_TYPE_P (type)
|
|
|
|
|
+ && GET_MODE_SIZE (TYPE_MODE (type)) <= UNITS_PER_WORD)))
|
|
|
|
|
+ {
|
|
|
|
|
+ fields[n].type = type;
|
|
|
|
|
+ fields[n].offset = offset;
|
|
|
|
|
+ return n + 1;
|
|
|
|
|
+ }
|
|
|
|
|
+ else
|
|
|
|
|
+ return -1;
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Identify candidate aggregates for passing in floating-point registers.
|
|
|
|
|
+ Candidates have at most two fields after flattening. */
|
|
|
|
|
+
|
|
|
|
|
+static int
|
|
|
|
|
+riscv_flatten_aggregate_argument (const_tree type,
|
|
|
|
|
+ riscv_aggregate_field fields[2])
|
|
|
|
|
+{
|
|
|
|
|
+ if (!type || TREE_CODE (type) != RECORD_TYPE)
|
|
|
|
|
+ return -1;
|
|
|
|
|
+
|
|
|
|
|
+ return riscv_flatten_aggregate_field (type, fields, 0, 0);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* See whether TYPE is a record whose fields should be returned in one or
|
|
|
|
|
+ two floating-point registers. If so, populate FIELDS accordingly. */
|
|
|
|
|
+
|
|
|
|
|
+static unsigned
|
|
|
|
|
+riscv_pass_aggregate_in_fpr_pair_p (const_tree type,
|
|
|
|
|
+ riscv_aggregate_field fields[2])
|
|
|
|
|
+{
|
|
|
|
|
+ int n = riscv_flatten_aggregate_argument (type, fields);
|
|
|
|
|
+
|
|
|
|
|
+ for (int i = 0; i < n; i++)
|
|
|
|
|
+ if (!SCALAR_FLOAT_TYPE_P (fields[i].type))
|
|
|
|
|
+ return 0;
|
|
|
|
|
+
|
|
|
|
|
+ return n > 0 ? n : 0;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* See whether TYPE is a record whose fields should be returned in one or
|
|
|
|
|
+ floating-point register and one integer register. If so, populate
|
|
|
|
|
+ FIELDS accordingly. */
|
|
|
|
|
+
|
|
|
|
|
+static bool
|
|
|
|
|
+riscv_pass_aggregate_in_fpr_and_gpr_p (const_tree type,
|
|
|
|
|
+ riscv_aggregate_field fields[2])
|
|
|
|
|
+{
|
|
|
|
|
+ unsigned num_int = 0, num_float = 0;
|
|
|
|
|
+ int n = riscv_flatten_aggregate_argument (type, fields);
|
|
|
|
|
+
|
|
|
|
|
+ for (int i = 0; i < n; i++)
|
|
|
|
|
+ {
|
|
|
|
|
+ num_float += SCALAR_FLOAT_TYPE_P (fields[i].type);
|
|
|
|
|
+ num_int += INTEGRAL_TYPE_P (fields[i].type);
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ return num_int == 1 && num_float == 1;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return the representation of an argument passed or returned in an FPR
|
|
|
|
|
+ when the value has mode VALUE_MODE and the type has TYPE_MODE. The
|
|
|
|
|
+ two modes may be different for structures like:
|
|
|
|
|
+
|
|
|
|
|
+ struct __attribute__((packed)) foo { float f; }
|
|
|
|
|
+
|
|
|
|
|
+ where the SFmode value "f" is passed in REGNO but the struct itself
|
|
|
|
|
+ has mode BLKmode. */
|
|
|
|
|
+
|
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_pass_fpr_single (enum machine_mode type_mode, unsigned regno,
|
|
|
|
|
+ enum machine_mode value_mode)
|
|
|
|
|
+{
|
|
|
|
|
+ rtx x = gen_rtx_REG (value_mode, regno);
|
|
|
|
|
+
|
|
|
|
|
+ if (type_mode != value_mode)
|
|
|
|
|
+ {
|
|
|
|
|
+ x = gen_rtx_EXPR_LIST (VOIDmode, x, const0_rtx);
|
|
|
|
|
+ x = gen_rtx_PARALLEL (type_mode, gen_rtvec (1, x));
|
|
|
|
|
+ }
|
|
|
|
|
+ return x;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Pass or return a composite value in the FPR pair REGNO and REGNO + 1.
|
|
|
|
|
+ MODE is the mode of the composite. MODE1 and OFFSET1 are the mode and
|
|
|
|
|
+ byte offset for the first value, likewise MODE2 and OFFSET2 for the
|
|
|
|
|
+ second value. */
|
|
|
|
|
+
|
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_pass_fpr_pair (enum machine_mode mode, unsigned regno1,
|
|
|
|
|
+ enum machine_mode mode1, HOST_WIDE_INT offset1,
|
|
|
|
|
+ unsigned regno2, enum machine_mode mode2,
|
|
|
|
|
+ HOST_WIDE_INT offset2)
|
|
|
|
|
+{
|
|
|
|
|
+ return gen_rtx_PARALLEL
|
|
|
|
|
+ (mode,
|
|
|
|
|
+ gen_rtvec (2,
|
|
|
|
|
+ gen_rtx_EXPR_LIST (VOIDmode,
|
|
|
|
|
+ gen_rtx_REG (mode1, regno1),
|
|
|
|
|
+ GEN_INT (offset1)),
|
|
|
|
|
+ gen_rtx_EXPR_LIST (VOIDmode,
|
|
|
|
|
+ gen_rtx_REG (mode2, regno2),
|
|
|
|
|
+ GEN_INT (offset2))));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Fill INFO with information about a single argument, and return an
|
|
|
|
|
+ RTL pattern to pass or return the argument. CUM is the cumulative
|
|
|
|
|
+ state for earlier arguments. MODE is the mode of this argument and
|
|
|
|
|
+ TYPE is its type (if known). NAMED is true if this is a named
|
|
|
|
|
+ (fixed) argument rather than a variable one. RETURN_P is true if
|
|
|
|
|
+ returning the argument, or false if passing the argument. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+static rtx
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+riscv_get_arg_info (struct riscv_arg_info *info, const CUMULATIVE_ARGS *cum,
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ enum machine_mode mode, const_tree type, bool named,
|
|
|
|
|
+ bool return_p)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ unsigned num_bytes, num_words;
|
|
|
|
|
+ unsigned fpr_base = return_p ? FP_RETURN : FP_ARG_FIRST;
|
|
|
|
|
+ unsigned gpr_base = return_p ? GP_RETURN : GP_ARG_FIRST;
|
|
|
|
|
+ unsigned alignment = riscv_function_arg_boundary (mode, type);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ memset (info, 0, sizeof (*info));
|
|
|
|
|
+ info->gpr_offset = cum->num_gprs;
|
|
|
|
|
+ info->fpr_offset = cum->num_fprs;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (named)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ riscv_aggregate_field fields[2];
|
|
|
|
|
+ unsigned fregno = fpr_base + info->fpr_offset;
|
|
|
|
|
+ unsigned gregno = gpr_base + info->gpr_offset;
|
|
|
|
|
+
|
|
|
|
|
+ /* Pass one- or two-element floating-point aggregates in FPRs. */
|
|
|
|
|
+ if ((info->num_fprs = riscv_pass_aggregate_in_fpr_pair_p (type, fields))
|
|
|
|
|
+ && info->fpr_offset + info->num_fprs <= MAX_ARGS_IN_REGISTERS)
|
|
|
|
|
+ switch (info->num_fprs)
|
|
|
|
|
+ {
|
|
|
|
|
+ case 1:
|
|
|
|
|
+ return riscv_pass_fpr_single (mode, fregno,
|
|
|
|
|
+ TYPE_MODE (fields[0].type));
|
|
|
|
|
+
|
|
|
|
|
+ case 2:
|
|
|
|
|
+ return riscv_pass_fpr_pair (mode, fregno,
|
|
|
|
|
+ TYPE_MODE (fields[0].type),
|
|
|
|
|
+ fields[0].offset,
|
|
|
|
|
+ fregno + 1,
|
|
|
|
|
+ TYPE_MODE (fields[1].type),
|
|
|
|
|
+ fields[1].offset);
|
|
|
|
|
+
|
|
|
|
|
+ default:
|
|
|
|
|
+ gcc_unreachable ();
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ /* Pass real and complex floating-point numbers in FPRs. */
|
|
|
|
|
+ if ((info->num_fprs = riscv_pass_mode_in_fpr_p (mode))
|
|
|
|
|
+ && info->fpr_offset + info->num_fprs <= MAX_ARGS_IN_REGISTERS)
|
|
|
|
|
+ switch (GET_MODE_CLASS (mode))
|
|
|
|
|
+ {
|
|
|
|
|
+ case MODE_FLOAT:
|
|
|
|
|
+ return gen_rtx_REG (mode, fregno);
|
|
|
|
|
+
|
|
|
|
|
+ case MODE_COMPLEX_FLOAT:
|
|
|
|
|
+ return riscv_pass_fpr_pair (mode, fregno, GET_MODE_INNER (mode), 0,
|
|
|
|
|
+ fregno + 1, GET_MODE_INNER (mode),
|
|
|
|
|
+ GET_MODE_UNIT_SIZE (mode));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ default:
|
|
|
|
|
+ gcc_unreachable ();
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ /* Pass structs with one float and one integer in an FPR and a GPR. */
|
|
|
|
|
+ if (riscv_pass_aggregate_in_fpr_and_gpr_p (type, fields)
|
|
|
|
|
+ && info->gpr_offset < MAX_ARGS_IN_REGISTERS
|
|
|
|
|
+ && info->fpr_offset < MAX_ARGS_IN_REGISTERS)
|
|
|
|
|
+ {
|
|
|
|
|
+ info->num_gprs = 1;
|
|
|
|
|
+ info->num_fprs = 1;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (!SCALAR_FLOAT_TYPE_P (fields[0].type))
|
|
|
|
|
+ std::swap (fregno, gregno);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ return riscv_pass_fpr_pair (mode, fregno, TYPE_MODE (fields[0].type),
|
|
|
|
|
+ fields[0].offset,
|
|
|
|
|
+ gregno, TYPE_MODE (fields[1].type),
|
|
|
|
|
+ fields[1].offset);
|
|
|
|
|
+ }
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Work out the size of the argument. */
|
|
|
|
|
+ num_bytes = type ? int_size_in_bytes (type) : GET_MODE_SIZE (mode);
|
|
|
|
|
+ num_words = (num_bytes + UNITS_PER_WORD - 1) / UNITS_PER_WORD;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Doubleword-aligned varargs start on an even register boundary. */
|
|
|
|
|
+ if (!named && num_bytes != 0 && alignment > BITS_PER_WORD)
|
|
|
|
|
+ info->gpr_offset += info->gpr_offset & 1;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ /* Partition the argument between registers and stack. */
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ info->num_fprs = 0;
|
|
|
|
|
+ info->num_gprs = MIN (num_words, MAX_ARGS_IN_REGISTERS - info->gpr_offset);
|
|
|
|
|
+ info->stack_p = (num_words - info->num_gprs) != 0;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (info->num_gprs || return_p)
|
|
|
|
|
+ return gen_rtx_REG (mode, gpr_base + info->gpr_offset);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ return NULL_RTX;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_FUNCTION_ARG. */
|
|
|
|
|
+
|
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_function_arg (cumulative_args_t cum_v, enum machine_mode mode,
|
|
|
|
|
+ const_tree type, bool named)
|
|
|
|
|
+{
|
|
|
|
|
+ CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v);
|
|
|
|
|
+ struct riscv_arg_info info;
|
|
|
|
|
+
|
|
|
|
|
+ if (mode == VOIDmode)
|
|
|
|
|
+ return NULL;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ return riscv_get_arg_info (&info, cum, mode, type, named, false);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_FUNCTION_ARG_ADVANCE. */
|
|
|
|
|
+
|
|
|
|
|
+static void
|
|
|
|
|
+riscv_function_arg_advance (cumulative_args_t cum_v, enum machine_mode mode,
|
|
|
|
|
+ const_tree type, bool named)
|
|
|
|
|
+{
|
|
|
|
|
+ CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v);
|
|
|
|
|
+ struct riscv_arg_info info;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ riscv_get_arg_info (&info, cum, mode, type, named, false);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ /* Advance the register count. This has the effect of setting
|
|
|
|
|
+ num_gprs to MAX_ARGS_IN_REGISTERS if a doubleword-aligned
|
|
|
|
|
+ argument required us to skip the final GPR and pass the whole
|
|
|
|
|
+ argument on the stack. */
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ cum->num_fprs = info.fpr_offset + info.num_fprs;
|
|
|
|
|
+ cum->num_gprs = info.gpr_offset + info.num_gprs;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_ARG_PARTIAL_BYTES. */
|
|
|
|
|
+
|
|
|
|
|
+static int
|
|
|
|
|
+riscv_arg_partial_bytes (cumulative_args_t cum,
|
|
|
|
|
+ enum machine_mode mode, tree type, bool named)
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ struct riscv_arg_info arg;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ riscv_get_arg_info (&arg, get_cumulative_args (cum), mode, type, named, false);
|
|
|
|
|
+ return arg.stack_p ? arg.num_gprs * UNITS_PER_WORD : 0;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement FUNCTION_VALUE and LIBCALL_VALUE. For normal calls,
|
|
|
|
|
+ VALTYPE is the return type and MODE is VOIDmode. For libcalls,
|
|
|
|
|
+ VALTYPE is null and MODE is the mode of the return value. */
|
|
|
|
|
+
|
|
|
|
|
+rtx
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+riscv_function_value (const_tree type, const_tree func, enum machine_mode mode)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ struct riscv_arg_info info;
|
|
|
|
|
+ CUMULATIVE_ARGS args;
|
|
|
|
|
+
|
|
|
|
|
+ if (type)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ int unsigned_p = TYPE_UNSIGNED (type);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ mode = TYPE_MODE (type);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ /* Since TARGET_PROMOTE_FUNCTION_MODE unconditionally promotes,
|
|
|
|
|
+ return values, promote the mode here too. */
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ mode = promote_function_mode (type, mode, &unsigned_p, func, 1);
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ memset (&args, 0, sizeof args);
|
|
|
|
|
+ return riscv_get_arg_info (&info, &args, mode, type, true, true);
|
|
|
|
|
+}
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Implement TARGET_PASS_BY_REFERENCE. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+static bool
|
|
|
|
|
+riscv_pass_by_reference (cumulative_args_t cum_v, enum machine_mode mode,
|
|
|
|
|
+ const_tree type, bool named)
|
|
|
|
|
+{
|
|
|
|
|
+ HOST_WIDE_INT size = type ? int_size_in_bytes (type) : GET_MODE_SIZE (mode);
|
|
|
|
|
+ struct riscv_arg_info info;
|
|
|
|
|
+ CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* ??? std_gimplify_va_arg_expr passes NULL for cum. Fortunately, we
|
|
|
|
|
+ never pass variadic arguments in floating-point registers, so we can
|
|
|
|
|
+ avoid the call to riscv_get_arg_info in this case. */
|
|
|
|
|
+ if (cum != NULL)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Don't pass by reference if we can use a floating-point register. */
|
|
|
|
|
+ riscv_get_arg_info (&info, cum, mode, type, named, false);
|
|
|
|
|
+ if (info.num_fprs)
|
|
|
|
|
+ return false;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Pass by reference if the data do not fit in two integer registers. */
|
|
|
|
|
+ return !IN_RANGE (size, 0, 2 * UNITS_PER_WORD);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Implement TARGET_RETURN_IN_MEMORY. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+static bool
|
|
|
|
|
+riscv_return_in_memory (const_tree type, const_tree fndecl ATTRIBUTE_UNUSED)
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ CUMULATIVE_ARGS args;
|
|
|
|
|
+ cumulative_args_t cum = pack_cumulative_args (&args);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* The rules for returning in memory are the same as for passing the
|
|
|
|
|
+ first named argument by reference. */
|
|
|
|
|
+ memset (&args, 0, sizeof args);
|
|
|
|
|
+ return riscv_pass_by_reference (cum, TYPE_MODE (type), type, true);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_SETUP_INCOMING_VARARGS. */
|
|
|
|
|
+
|
|
|
|
|
+static void
|
|
|
|
|
+riscv_setup_incoming_varargs (cumulative_args_t cum, enum machine_mode mode,
|
|
|
|
|
+ tree type, int *pretend_size ATTRIBUTE_UNUSED,
|
|
|
|
|
+ int no_rtl)
|
|
|
|
|
+{
|
|
|
|
|
+ CUMULATIVE_ARGS local_cum;
|
|
|
|
|
+ int gp_saved;
|
|
|
|
|
+
|
|
|
|
|
+ /* The caller has advanced CUM up to, but not beyond, the last named
|
|
|
|
|
+ argument. Advance a local copy of CUM past the last "real" named
|
|
|
|
|
+ argument, to find out how many registers are left over. */
|
|
|
|
|
+ local_cum = *get_cumulative_args (cum);
|
|
|
|
|
+ riscv_function_arg_advance (pack_cumulative_args (&local_cum), mode, type, 1);
|
|
|
|
|
+
|
|
|
|
|
+ /* Found out how many registers we need to save. */
|
|
|
|
|
+ gp_saved = MAX_ARGS_IN_REGISTERS - local_cum.num_gprs;
|
|
|
|
|
+
|
|
|
|
|
+ if (!no_rtl && gp_saved > 0)
|
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ rtx ptr = plus_constant (Pmode, virtual_incoming_args_rtx,
|
|
|
|
|
+ REG_PARM_STACK_SPACE (cfun->decl)
|
|
|
|
|
+ - gp_saved * UNITS_PER_WORD);
|
|
|
|
|
+ rtx mem = gen_frame_mem (BLKmode, ptr);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ set_mem_alias_set (mem, get_varargs_alias_set ());
|
|
|
|
|
+
|
|
|
|
|
+ move_block_from_reg (local_cum.num_gprs + GP_ARG_FIRST,
|
|
|
|
|
+ mem, gp_saved);
|
|
|
|
|
+ }
|
|
|
|
|
+ if (REG_PARM_STACK_SPACE (cfun->decl) == 0)
|
|
|
|
|
+ cfun->machine->varargs_size = gp_saved * UNITS_PER_WORD;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_EXPAND_BUILTIN_VA_START. */
|
|
|
|
|
+
|
|
|
|
|
+static void
|
|
|
|
|
+riscv_va_start (tree valist, rtx nextarg)
|
|
|
|
|
+{
|
|
|
|
|
+ nextarg = plus_constant (Pmode, nextarg, -cfun->machine->varargs_size);
|
|
|
|
|
+ std_expand_builtin_va_start (valist, nextarg);
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Make ADDR suitable for use as a call or sibcall target. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+rtx
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+riscv_legitimize_call_address (rtx addr)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
|
|
|
|
+ if (!call_insn_operand (addr, VOIDmode))
|
|
|
|
|
+ {
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ rtx reg = RISCV_PROLOGUE_TEMP (Pmode);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ riscv_emit_move (reg, addr);
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ return reg;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ return addr;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Print symbolic operand OP, which is part of a HIGH or LO_SUM
|
|
|
|
|
+ in context CONTEXT. HI_RELOC indicates a high-part reloc. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+static void
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+riscv_print_operand_reloc (FILE *file, rtx op, bool hi_reloc)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ const char *reloc;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ switch (riscv_classify_symbolic_expression (op))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ case SYMBOL_ABSOLUTE:
|
|
|
|
|
+ reloc = hi_reloc ? "%hi" : "%lo";
|
|
|
|
|
+ break;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ case SYMBOL_PCREL:
|
|
|
|
|
+ reloc = hi_reloc ? "%pcrel_hi" : "%pcrel_lo";
|
|
|
|
|
+ break;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ case SYMBOL_TLS_LE:
|
|
|
|
|
+ reloc = hi_reloc ? "%tprel_hi" : "%tprel_lo";
|
|
|
|
|
+ break;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ default:
|
|
|
|
|
+ gcc_unreachable ();
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ fprintf (file, "%s(", reloc);
|
|
|
|
|
+ output_addr_const (file, riscv_strip_unspec_address (op));
|
|
|
|
|
+ fputc (')', file);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Return true if the .AQ suffix should be added to an AMO to implement the
|
|
|
|
|
+ acquire portion of memory model MODEL. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+static bool
|
|
|
|
|
+riscv_memmodel_needs_amo_acquire (enum memmodel model)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ switch (model)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ case MEMMODEL_ACQ_REL:
|
|
|
|
|
+ case MEMMODEL_SEQ_CST:
|
|
|
|
|
+ case MEMMODEL_SYNC_SEQ_CST:
|
|
|
|
|
+ case MEMMODEL_ACQUIRE:
|
|
|
|
|
+ case MEMMODEL_CONSUME:
|
|
|
|
|
+ case MEMMODEL_SYNC_ACQUIRE:
|
|
|
|
|
+ return true;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ case MEMMODEL_RELEASE:
|
|
|
|
|
+ case MEMMODEL_SYNC_RELEASE:
|
|
|
|
|
+ case MEMMODEL_RELAXED:
|
|
|
|
|
+ return false;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ default:
|
|
|
|
|
+ gcc_unreachable ();
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Return true if a FENCE should be emitted to before a memory access to
|
|
|
|
|
+ implement the release portion of memory model MODEL. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+static bool
|
|
|
|
|
+riscv_memmodel_needs_release_fence (enum memmodel model)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
|
|
|
|
+ switch (model)
|
|
|
|
|
+ {
|
|
|
|
|
+ case MEMMODEL_ACQ_REL:
|
|
|
|
|
+ case MEMMODEL_SEQ_CST:
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ case MEMMODEL_SYNC_SEQ_CST:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ case MEMMODEL_RELEASE:
|
|
|
|
|
+ case MEMMODEL_SYNC_RELEASE:
|
|
|
|
|
+ return true;
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ case MEMMODEL_ACQUIRE:
|
|
|
|
|
+ case MEMMODEL_CONSUME:
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ case MEMMODEL_SYNC_ACQUIRE:
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ case MEMMODEL_RELAXED:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ return false;
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ default:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ gcc_unreachable ();
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_PRINT_OPERAND. The RISCV-specific operand codes are:
|
|
|
|
|
+
|
|
|
|
|
+ 'h' Print the high-part relocation associated with OP, after stripping
|
|
|
|
|
+ any outermost HIGH.
|
|
|
|
|
+ 'R' Print the low-part relocation associated with OP.
|
|
|
|
|
+ 'C' Print the integer branch condition for comparison OP.
|
|
|
|
|
+ 'A' Print the atomic operation suffix for memory model OP.
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ 'F' Print a FENCE if the memory model requires a release.
|
|
|
|
|
+ 'z' Print x0 if OP is zero, otherwise print OP normally. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+static void
|
|
|
|
|
+riscv_print_operand (FILE *file, rtx op, int letter)
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ enum machine_mode mode = GET_MODE (op);
|
|
|
|
|
+ enum rtx_code code = GET_CODE (op);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ switch (letter)
|
|
|
|
|
+ {
|
|
|
|
|
+ case 'h':
|
|
|
|
|
+ if (code == HIGH)
|
|
|
|
|
+ op = XEXP (op, 0);
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ riscv_print_operand_reloc (file, op, true);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ break;
|
|
|
|
|
+
|
|
|
|
|
+ case 'R':
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ riscv_print_operand_reloc (file, op, false);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ break;
|
|
|
|
|
+
|
|
|
|
|
+ case 'C':
|
|
|
|
|
+ /* The RTL names match the instruction names. */
|
|
|
|
|
+ fputs (GET_RTX_NAME (code), file);
|
|
|
|
|
+ break;
|
|
|
|
|
+
|
|
|
|
|
+ case 'A':
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (riscv_memmodel_needs_amo_acquire ((enum memmodel) INTVAL (op)))
|
|
|
|
|
+ fputs (".aq", file);
|
|
|
|
|
+ break;
|
|
|
|
|
+
|
|
|
|
|
+ case 'F':
|
|
|
|
|
+ if (riscv_memmodel_needs_release_fence ((enum memmodel) INTVAL (op)))
|
|
|
|
|
+ fputs ("fence rw,w; ", file);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ break;
|
|
|
|
|
+
|
|
|
|
|
+ default:
|
|
|
|
|
+ switch (code)
|
|
|
|
|
+ {
|
|
|
|
|
+ case REG:
|
|
|
|
|
+ if (letter && letter != 'z')
|
|
|
|
|
+ output_operand_lossage ("invalid use of '%%%c'", letter);
|
|
|
|
|
+ fprintf (file, "%s", reg_names[REGNO (op)]);
|
|
|
|
|
+ break;
|
|
|
|
|
+
|
|
|
|
|
+ case MEM:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (letter && letter != 'z')
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ output_operand_lossage ("invalid use of '%%%c'", letter);
|
|
|
|
|
+ else
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ output_address (mode, XEXP (op, 0));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ break;
|
|
|
|
|
+
|
|
|
|
|
+ default:
|
|
|
|
|
+ if (letter == 'z' && op == CONST0_RTX (GET_MODE (op)))
|
|
|
|
|
+ fputs (reg_names[GP_REG_FIRST], file);
|
|
|
|
|
+ else if (letter && letter != 'z')
|
|
|
|
|
+ output_operand_lossage ("invalid use of '%%%c'", letter);
|
|
|
|
|
+ else
|
|
|
|
|
+ output_addr_const (file, riscv_strip_unspec_address (op));
|
|
|
|
|
+ break;
|
|
|
|
|
+ }
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_PRINT_OPERAND_ADDRESS. */
|
|
|
|
|
+
|
|
|
|
|
+static void
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+riscv_print_operand_address (FILE *file, machine_mode mode ATTRIBUTE_UNUSED, rtx x)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
|
|
|
|
+ struct riscv_address_info addr;
|
|
|
|
|
+
|
|
|
|
|
+ if (riscv_classify_address (&addr, x, word_mode, true))
|
|
|
|
|
+ switch (addr.type)
|
|
|
|
|
+ {
|
|
|
|
|
+ case ADDRESS_REG:
|
|
|
|
|
+ riscv_print_operand (file, addr.offset, 0);
|
|
|
|
|
+ fprintf (file, "(%s)", reg_names[REGNO (addr.reg)]);
|
|
|
|
|
+ return;
|
|
|
|
|
+
|
|
|
|
|
+ case ADDRESS_LO_SUM:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ riscv_print_operand_reloc (file, addr.offset, false);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ fprintf (file, "(%s)", reg_names[REGNO (addr.reg)]);
|
|
|
|
|
+ return;
|
|
|
|
|
+
|
|
|
|
|
+ case ADDRESS_CONST_INT:
|
|
|
|
|
+ output_addr_const (file, x);
|
|
|
|
|
+ fprintf (file, "(%s)", reg_names[GP_REG_FIRST]);
|
|
|
|
|
+ return;
|
|
|
|
|
+
|
|
|
|
|
+ case ADDRESS_SYMBOLIC:
|
|
|
|
|
+ output_addr_const (file, riscv_strip_unspec_address (x));
|
|
|
|
|
+ return;
|
|
|
|
|
+ }
|
|
|
|
|
+ gcc_unreachable ();
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+static bool
|
|
|
|
|
+riscv_size_ok_for_small_data_p (int size)
|
|
|
|
|
+{
|
|
|
|
|
+ return g_switch_value && IN_RANGE (size, 1, g_switch_value);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return true if EXP should be placed in the small data section. */
|
|
|
|
|
+
|
|
|
|
|
+static bool
|
|
|
|
|
+riscv_in_small_data_p (const_tree x)
|
|
|
|
|
+{
|
|
|
|
|
+ if (TREE_CODE (x) == STRING_CST || TREE_CODE (x) == FUNCTION_DECL)
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ if (TREE_CODE (x) == VAR_DECL && DECL_SECTION_NAME (x))
|
|
|
|
|
+ {
|
|
|
|
|
+ const char *sec = DECL_SECTION_NAME (x);
|
|
|
|
|
+ return strcmp (sec, ".sdata") == 0 || strcmp (sec, ".sbss") == 0;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ return riscv_size_ok_for_small_data_p (int_size_in_bytes (TREE_TYPE (x)));
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return a section for X, handling small data. */
|
|
|
|
|
+
|
|
|
|
|
+static section *
|
|
|
|
|
+riscv_elf_select_rtx_section (enum machine_mode mode, rtx x,
|
|
|
|
|
+ unsigned HOST_WIDE_INT align)
|
|
|
|
|
+{
|
|
|
|
|
+ section *s = default_elf_select_rtx_section (mode, x, align);
|
|
|
|
|
+
|
|
|
|
|
+ if (riscv_size_ok_for_small_data_p (GET_MODE_SIZE (mode)))
|
|
|
|
|
+ {
|
|
|
|
|
+ if (strncmp (s->named.name, ".rodata.cst", strlen (".rodata.cst")) == 0)
|
|
|
|
|
+ {
|
|
|
|
|
+ /* Rename .rodata.cst* to .srodata.cst*. */
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ char *name = (char *) alloca (strlen (s->named.name) + 2);
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ sprintf (name, ".s%s", s->named.name + 1);
|
|
|
|
|
+ return get_section (name, s->named.common.flags, NULL);
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (s == data_section)
|
|
|
|
|
+ return sdata_section;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+
|
|
|
|
|
+ return s;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Make the last instruction frame-related and note that it performs
|
|
|
|
|
+ the operation described by FRAME_PATTERN. */
|
|
|
|
|
+
|
|
|
|
|
+static void
|
|
|
|
|
+riscv_set_frame_expr (rtx frame_pattern)
|
|
|
|
|
+{
|
|
|
|
|
+ rtx insn;
|
|
|
|
|
+
|
|
|
|
|
+ insn = get_last_insn ();
|
|
|
|
|
+ RTX_FRAME_RELATED_P (insn) = 1;
|
|
|
|
|
+ REG_NOTES (insn) = alloc_EXPR_LIST (REG_FRAME_RELATED_EXPR,
|
|
|
|
|
+ frame_pattern,
|
|
|
|
|
+ REG_NOTES (insn));
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return a frame-related rtx that stores REG at MEM.
|
|
|
|
|
+ REG must be a single register. */
|
|
|
|
|
+
|
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_frame_set (rtx mem, rtx reg)
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ rtx set = gen_rtx_SET (mem, reg);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ RTX_FRAME_RELATED_P (set) = 1;
|
|
|
|
|
+ return set;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return true if the current function must save register REGNO. */
|
|
|
|
|
+
|
|
|
|
|
+static bool
|
|
|
|
|
+riscv_save_reg_p (unsigned int regno)
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ bool call_saved = !global_regs[regno] && !call_used_regs[regno];
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ bool might_clobber = crtl->saves_all_registers
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ || df_regs_ever_live_p (regno);
|
|
|
|
|
+
|
|
|
|
|
+ if (call_saved && might_clobber)
|
|
|
|
|
+ return true;
|
|
|
|
|
+
|
|
|
|
|
+ if (regno == HARD_FRAME_POINTER_REGNUM && frame_pointer_needed)
|
|
|
|
|
+ return true;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (regno == RETURN_ADDR_REGNUM && crtl->calls_eh_return)
|
|
|
|
|
+ return true;
|
|
|
|
|
+
|
|
|
|
|
+ return false;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Determine whether to call GPR save/restore routines. */
|
|
|
|
|
+static bool
|
|
|
|
|
+riscv_use_save_libcall (const struct riscv_frame_info *frame)
|
|
|
|
|
+{
|
|
|
|
|
+ if (!TARGET_SAVE_RESTORE || crtl->calls_eh_return || frame_pointer_needed)
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ return frame->save_libcall_adjustment != 0;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Determine which GPR save/restore routine to call. */
|
|
|
|
|
+
|
|
|
|
|
+static unsigned
|
|
|
|
|
+riscv_save_libcall_count (unsigned mask)
|
|
|
|
|
+{
|
|
|
|
|
+ for (unsigned n = GP_REG_LAST; n > GP_REG_FIRST; n--)
|
|
|
|
|
+ if (BITSET_P (mask, n))
|
|
|
|
|
+ return CALLEE_SAVED_REG_NUMBER (n) + 1;
|
|
|
|
|
+ abort ();
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Populate the current function's riscv_frame_info structure.
|
|
|
|
|
+
|
|
|
|
|
+ RISC-V stack frames grown downward. High addresses are at the top.
|
|
|
|
|
+
|
|
|
|
|
+ +-------------------------------+
|
|
|
|
|
+ | |
|
|
|
|
|
+ | incoming stack arguments |
|
|
|
|
|
+ | |
|
|
|
|
|
+ +-------------------------------+ <-- incoming stack pointer
|
|
|
|
|
+ | |
|
|
|
|
|
+ | callee-allocated save area |
|
|
|
|
|
+ | for arguments that are |
|
|
|
|
|
+ | split between registers and |
|
|
|
|
|
+ | the stack |
|
|
|
|
|
+ | |
|
|
|
|
|
+ +-------------------------------+ <-- arg_pointer_rtx
|
|
|
|
|
+ | |
|
|
|
|
|
+ | callee-allocated save area |
|
|
|
|
|
+ | for register varargs |
|
|
|
|
|
+ | |
|
|
|
|
|
+ +-------------------------------+ <-- hard_frame_pointer_rtx;
|
|
|
|
|
+ | | stack_pointer_rtx + gp_sp_offset
|
|
|
|
|
+ | GPR save area | + UNITS_PER_WORD
|
|
|
|
|
+ | |
|
|
|
|
|
+ +-------------------------------+ <-- stack_pointer_rtx + fp_sp_offset
|
|
|
|
|
+ | | + UNITS_PER_HWVALUE
|
|
|
|
|
+ | FPR save area |
|
|
|
|
|
+ | |
|
|
|
|
|
+ +-------------------------------+ <-- frame_pointer_rtx (virtual)
|
|
|
|
|
+ | |
|
|
|
|
|
+ | local variables |
|
|
|
|
|
+ | |
|
|
|
|
|
+ P +-------------------------------+
|
|
|
|
|
+ | |
|
|
|
|
|
+ | outgoing stack arguments |
|
|
|
|
|
+ | |
|
|
|
|
|
+ +-------------------------------+ <-- stack_pointer_rtx
|
|
|
|
|
+
|
|
|
|
|
+ Dynamic stack allocations such as alloca insert data at point P.
|
|
|
|
|
+ They decrease stack_pointer_rtx but leave frame_pointer_rtx and
|
|
|
|
|
+ hard_frame_pointer_rtx unchanged. */
|
|
|
|
|
+
|
|
|
|
|
+static void
|
|
|
|
|
+riscv_compute_frame_info (void)
|
|
|
|
|
+{
|
|
|
|
|
+ struct riscv_frame_info *frame;
|
|
|
|
|
+ HOST_WIDE_INT offset;
|
|
|
|
|
+ unsigned int regno, i, num_x_saved = 0, num_f_saved = 0;
|
|
|
|
|
+
|
|
|
|
|
+ frame = &cfun->machine->frame;
|
|
|
|
|
+ memset (frame, 0, sizeof (*frame));
|
|
|
|
|
+
|
|
|
|
|
+ /* Find out which GPRs we need to save. */
|
|
|
|
|
+ for (regno = GP_REG_FIRST; regno <= GP_REG_LAST; regno++)
|
|
|
|
|
+ if (riscv_save_reg_p (regno))
|
|
|
|
|
+ frame->mask |= 1 << (regno - GP_REG_FIRST), num_x_saved++;
|
|
|
|
|
+
|
|
|
|
|
+ /* If this function calls eh_return, we must also save and restore the
|
|
|
|
|
+ EH data registers. */
|
|
|
|
|
+ if (crtl->calls_eh_return)
|
|
|
|
|
+ for (i = 0; (regno = EH_RETURN_DATA_REGNO (i)) != INVALID_REGNUM; i++)
|
|
|
|
|
+ frame->mask |= 1 << (regno - GP_REG_FIRST), num_x_saved++;
|
|
|
|
|
+
|
|
|
|
|
+ /* Find out which FPRs we need to save. This loop must iterate over
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ the same space as its companion in riscv_for_each_saved_reg. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ if (TARGET_HARD_FLOAT)
|
|
|
|
|
+ for (regno = FP_REG_FIRST; regno <= FP_REG_LAST; regno++)
|
|
|
|
|
+ if (riscv_save_reg_p (regno))
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ frame->fmask |= 1 << (regno - FP_REG_FIRST), num_f_saved++;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ /* At the bottom of the frame are any outgoing stack arguments. */
|
|
|
|
|
+ offset = crtl->outgoing_args_size;
|
|
|
|
|
+ /* Next are local stack variables. */
|
|
|
|
|
+ offset += RISCV_STACK_ALIGN (get_frame_size ());
|
|
|
|
|
+ /* The virtual frame pointer points above the local variables. */
|
|
|
|
|
+ frame->frame_pointer_offset = offset;
|
|
|
|
|
+ /* Next are the callee-saved FPRs. */
|
|
|
|
|
+ if (frame->fmask)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ offset += RISCV_STACK_ALIGN (num_f_saved * UNITS_PER_FP_REG);
|
|
|
|
|
+ frame->fp_sp_offset = offset - UNITS_PER_FP_REG;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ /* Next are the callee-saved GPRs. */
|
|
|
|
|
+ if (frame->mask)
|
|
|
|
|
+ {
|
|
|
|
|
+ unsigned x_save_size = RISCV_STACK_ALIGN (num_x_saved * UNITS_PER_WORD);
|
|
|
|
|
+ unsigned num_save_restore = 1 + riscv_save_libcall_count (frame->mask);
|
|
|
|
|
+
|
|
|
|
|
+ /* Only use save/restore routines if they don't alter the stack size. */
|
|
|
|
|
+ if (RISCV_STACK_ALIGN (num_save_restore * UNITS_PER_WORD) == x_save_size)
|
|
|
|
|
+ frame->save_libcall_adjustment = x_save_size;
|
|
|
|
|
+
|
|
|
|
|
+ offset += x_save_size;
|
|
|
|
|
+ }
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ frame->gp_sp_offset = offset - UNITS_PER_WORD;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ /* The hard frame pointer points above the callee-saved GPRs. */
|
|
|
|
|
+ frame->hard_frame_pointer_offset = offset;
|
|
|
|
|
+ /* Above the hard frame pointer is the callee-allocated varags save area. */
|
|
|
|
|
+ offset += RISCV_STACK_ALIGN (cfun->machine->varargs_size);
|
|
|
|
|
+ frame->arg_pointer_offset = offset;
|
|
|
|
|
+ /* Next is the callee-allocated area for pretend stack arguments. */
|
|
|
|
|
+ offset += crtl->args.pretend_args_size;
|
|
|
|
|
+ frame->total_size = offset;
|
|
|
|
|
+ /* Next points the incoming stack pointer and any incoming arguments. */
|
|
|
|
|
+
|
|
|
|
|
+ /* Only use save/restore routines when the GPRs are atop the frame. */
|
|
|
|
|
+ if (frame->hard_frame_pointer_offset != frame->total_size)
|
|
|
|
|
+ frame->save_libcall_adjustment = 0;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Make sure that we're not trying to eliminate to the wrong hard frame
|
|
|
|
|
+ pointer. */
|
|
|
|
|
+
|
|
|
|
|
+static bool
|
|
|
|
|
+riscv_can_eliminate (const int from ATTRIBUTE_UNUSED, const int to)
|
|
|
|
|
+{
|
|
|
|
|
+ return (to == HARD_FRAME_POINTER_REGNUM || to == STACK_POINTER_REGNUM);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement INITIAL_ELIMINATION_OFFSET. FROM is either the frame pointer
|
|
|
|
|
+ or argument pointer. TO is either the stack pointer or hard frame
|
|
|
|
|
+ pointer. */
|
|
|
|
|
+
|
|
|
|
|
+HOST_WIDE_INT
|
|
|
|
|
+riscv_initial_elimination_offset (int from, int to)
|
|
|
|
|
+{
|
|
|
|
|
+ HOST_WIDE_INT src, dest;
|
|
|
|
|
+
|
|
|
|
|
+ riscv_compute_frame_info ();
|
|
|
|
|
+
|
|
|
|
|
+ if (to == HARD_FRAME_POINTER_REGNUM)
|
|
|
|
|
+ dest = cfun->machine->frame.hard_frame_pointer_offset;
|
|
|
|
|
+ else if (to == STACK_POINTER_REGNUM)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ dest = 0; /* The stack pointer is the base of all offsets, hence 0. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ else
|
|
|
|
|
+ gcc_unreachable ();
|
|
|
|
|
+
|
|
|
|
|
+ if (from == FRAME_POINTER_REGNUM)
|
|
|
|
|
+ src = cfun->machine->frame.frame_pointer_offset;
|
|
|
|
|
+ else if (from == ARG_POINTER_REGNUM)
|
|
|
|
|
+ src = cfun->machine->frame.arg_pointer_offset;
|
|
|
|
|
+ else
|
|
|
|
|
+ gcc_unreachable ();
|
|
|
|
|
+
|
|
|
|
|
+ return src - dest;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement RETURN_ADDR_RTX. We do not support moving back to a
|
|
|
|
|
+ previous frame. */
|
|
|
|
|
+
|
|
|
|
|
+rtx
|
|
|
|
|
+riscv_return_addr (int count, rtx frame ATTRIBUTE_UNUSED)
|
|
|
|
|
+{
|
|
|
|
|
+ if (count != 0)
|
|
|
|
|
+ return const0_rtx;
|
|
|
|
|
+
|
|
|
|
|
+ return get_hard_reg_initial_val (Pmode, RETURN_ADDR_REGNUM);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Emit code to change the current function's return address to
|
|
|
|
|
+ ADDRESS. SCRATCH is available as a scratch register, if needed.
|
|
|
|
|
+ ADDRESS and SCRATCH are both word-mode GPRs. */
|
|
|
|
|
+
|
|
|
|
|
+void
|
|
|
|
|
+riscv_set_return_address (rtx address, rtx scratch)
|
|
|
|
|
+{
|
|
|
|
|
+ rtx slot_address;
|
|
|
|
|
+
|
|
|
|
|
+ gcc_assert (BITSET_P (cfun->machine->frame.mask, RETURN_ADDR_REGNUM));
|
|
|
|
|
+ slot_address = riscv_add_offset (scratch, stack_pointer_rtx,
|
|
|
|
|
+ cfun->machine->frame.gp_sp_offset);
|
|
|
|
|
+ riscv_emit_move (gen_frame_mem (GET_MODE (address), slot_address), address);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* A function to save or store a register. The first argument is the
|
|
|
|
|
+ register and the second is the stack slot. */
|
|
|
|
|
+typedef void (*riscv_save_restore_fn) (rtx, rtx);
|
|
|
|
|
+
|
|
|
|
|
+/* Use FN to save or restore register REGNO. MODE is the register's
|
|
|
|
|
+ mode and OFFSET is the offset of its save slot from the current
|
|
|
|
|
+ stack pointer. */
|
|
|
|
|
+
|
|
|
|
|
+static void
|
|
|
|
|
+riscv_save_restore_reg (enum machine_mode mode, int regno,
|
|
|
|
|
+ HOST_WIDE_INT offset, riscv_save_restore_fn fn)
|
|
|
|
|
+{
|
|
|
|
|
+ rtx mem;
|
|
|
|
|
+
|
|
|
|
|
+ mem = gen_frame_mem (mode, plus_constant (Pmode, stack_pointer_rtx, offset));
|
|
|
|
|
+ fn (gen_rtx_REG (mode, regno), mem);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Call FN for each register that is saved by the current function.
|
|
|
|
|
+ SP_OFFSET is the offset of the current stack pointer from the start
|
|
|
|
|
+ of the frame. */
|
|
|
|
|
+
|
|
|
|
|
+static void
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+riscv_for_each_saved_reg (HOST_WIDE_INT sp_offset, riscv_save_restore_fn fn)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
|
|
|
|
+ HOST_WIDE_INT offset;
|
|
|
|
|
+
|
|
|
|
|
+ /* Save the link register and s-registers. */
|
|
|
|
|
+ offset = cfun->machine->frame.gp_sp_offset - sp_offset;
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ for (int regno = GP_REG_FIRST; regno <= GP_REG_LAST-1; regno++)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ if (BITSET_P (cfun->machine->frame.mask, regno - GP_REG_FIRST))
|
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ riscv_save_restore_reg (word_mode, regno, offset, fn);
|
|
|
|
|
+ offset -= UNITS_PER_WORD;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ /* This loop must iterate over the same space as its companion in
|
|
|
|
|
+ riscv_compute_frame_info. */
|
|
|
|
|
+ offset = cfun->machine->frame.fp_sp_offset - sp_offset;
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ for (int regno = FP_REG_FIRST; regno <= FP_REG_LAST; regno++)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ if (BITSET_P (cfun->machine->frame.fmask, regno - FP_REG_FIRST))
|
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ enum machine_mode mode = TARGET_DOUBLE_FLOAT ? DFmode : SFmode;
|
|
|
|
|
+
|
|
|
|
|
+ riscv_save_restore_reg (mode, regno, offset, fn);
|
|
|
|
|
+ offset -= GET_MODE_SIZE (mode);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+/* Save register REG to MEM. Make the instruction frame-related. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+static void
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+riscv_save_reg (rtx reg, rtx mem)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ riscv_emit_move (mem, reg);
|
|
|
|
|
+ riscv_set_frame_expr (riscv_frame_set (mem, reg));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+/* Restore register REG from MEM. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+static void
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+riscv_restore_reg (rtx reg, rtx mem)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ rtx insn = riscv_emit_move (reg, mem);
|
|
|
|
|
+ rtx dwarf = NULL_RTX;
|
|
|
|
|
+ dwarf = alloc_reg_note (REG_CFA_RESTORE, reg, dwarf);
|
|
|
|
|
+ REG_NOTES (insn) = dwarf;
|
|
|
|
|
+
|
|
|
|
|
+ RTX_FRAME_RELATED_P (insn) = 1;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return the code to invoke the GPR save routine. */
|
|
|
|
|
+
|
|
|
|
|
+const char *
|
|
|
|
|
+riscv_output_gpr_save (unsigned mask)
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ static char s[32];
|
|
|
|
|
+ unsigned n = riscv_save_libcall_count (mask);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ ssize_t bytes = snprintf (s, sizeof (s), "call\tt0,__riscv_save_%u", n);
|
|
|
|
|
+ gcc_assert ((size_t) bytes < sizeof (s));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ return s;
|
|
|
|
|
+}
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* For stack frames that can't be allocated with a single ADDI instruction,
|
|
|
|
|
+ compute the best value to initially allocate. It must at a minimum
|
|
|
|
|
+ allocate enough space to spill the callee-saved registers. */
|
|
|
|
|
+
|
|
|
|
|
+static HOST_WIDE_INT
|
|
|
|
|
+riscv_first_stack_step (struct riscv_frame_info *frame)
|
|
|
|
|
+{
|
|
|
|
|
+ HOST_WIDE_INT min_first_step = frame->total_size - frame->fp_sp_offset;
|
|
|
|
|
+ HOST_WIDE_INT max_first_step = IMM_REACH / 2 - STACK_BOUNDARY / 8;
|
|
|
|
|
+
|
|
|
|
|
+ if (SMALL_OPERAND (frame->total_size))
|
|
|
|
|
+ return frame->total_size;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* As an optimization, use the least-significant bits of the total frame
|
|
|
|
|
+ size, so that the second adjustment step is just LUI + ADD. */
|
|
|
|
|
+ if (!SMALL_OPERAND (frame->total_size - max_first_step)
|
|
|
|
|
+ && frame->total_size % IMM_REACH < IMM_REACH / 2
|
|
|
|
|
+ && frame->total_size % IMM_REACH >= min_first_step)
|
|
|
|
|
+ return frame->total_size % IMM_REACH;
|
|
|
|
|
+
|
|
|
|
|
+ gcc_assert (min_first_step <= max_first_step);
|
|
|
|
|
+ return max_first_step;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_adjust_libcall_cfi_prologue ()
|
|
|
|
|
+{
|
|
|
|
|
+ rtx dwarf = NULL_RTX;
|
|
|
|
|
+ rtx adjust_sp_rtx, reg, mem, insn;
|
|
|
|
|
+ int saved_size = cfun->machine->frame.save_libcall_adjustment;
|
|
|
|
|
+ int offset;
|
|
|
|
|
+
|
|
|
|
|
+ for (int regno = GP_REG_FIRST; regno <= GP_REG_LAST-1; regno++)
|
|
|
|
|
+ if (BITSET_P (cfun->machine->frame.mask, regno - GP_REG_FIRST))
|
|
|
|
|
+ {
|
|
|
|
|
+ /* The save order is ra, s0, s1, s2 to s11. */
|
|
|
|
|
+ if (regno == RETURN_ADDR_REGNUM)
|
|
|
|
|
+ offset = saved_size - UNITS_PER_WORD;
|
|
|
|
|
+ else if (regno == S0_REGNUM)
|
|
|
|
|
+ offset = saved_size - UNITS_PER_WORD * 2;
|
|
|
|
|
+ else if (regno == S1_REGNUM)
|
|
|
|
|
+ offset = saved_size - UNITS_PER_WORD * 3;
|
|
|
|
|
+ else
|
|
|
|
|
+ offset = saved_size - ((regno - S2_REGNUM + 4) * UNITS_PER_WORD);
|
|
|
|
|
+
|
|
|
|
|
+ reg = gen_rtx_REG (SImode, regno);
|
|
|
|
|
+ mem = gen_frame_mem (SImode, plus_constant (Pmode,
|
|
|
|
|
+ stack_pointer_rtx,
|
|
|
|
|
+ offset));
|
|
|
|
|
+
|
|
|
|
|
+ insn = gen_rtx_SET (mem, reg);
|
|
|
|
|
+ dwarf = alloc_reg_note (REG_CFA_OFFSET, insn, dwarf);
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ /* Debug info for adjust sp. */
|
|
|
|
|
+ adjust_sp_rtx = gen_add3_insn (stack_pointer_rtx,
|
|
|
|
|
+ stack_pointer_rtx, GEN_INT (-saved_size));
|
|
|
|
|
+ dwarf = alloc_reg_note (REG_CFA_ADJUST_CFA, adjust_sp_rtx,
|
|
|
|
|
+ dwarf);
|
|
|
|
|
+ return dwarf;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+static void
|
|
|
|
|
+riscv_emit_stack_tie (void)
|
|
|
|
|
+{
|
|
|
|
|
+ if (Pmode == SImode)
|
|
|
|
|
+ emit_insn (gen_stack_tiesi (stack_pointer_rtx, hard_frame_pointer_rtx));
|
|
|
|
|
+ else
|
|
|
|
|
+ emit_insn (gen_stack_tiedi (stack_pointer_rtx, hard_frame_pointer_rtx));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Expand the "prologue" pattern. */
|
|
|
|
|
+
|
|
|
|
|
+void
|
|
|
|
|
+riscv_expand_prologue (void)
|
|
|
|
|
+{
|
|
|
|
|
+ struct riscv_frame_info *frame = &cfun->machine->frame;
|
|
|
|
|
+ HOST_WIDE_INT size = frame->total_size;
|
|
|
|
|
+ unsigned mask = frame->mask;
|
|
|
|
|
+ rtx insn;
|
|
|
|
|
+
|
|
|
|
|
+ if (flag_stack_usage_info)
|
|
|
|
|
+ current_function_static_stack_size = size;
|
|
|
|
|
+
|
|
|
|
|
+ /* When optimizing for size, call a subroutine to save the registers. */
|
|
|
|
|
+ if (riscv_use_save_libcall (frame))
|
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ rtx dwarf = NULL_RTX;
|
|
|
|
|
+ dwarf = riscv_adjust_libcall_cfi_prologue ();
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ frame->mask = 0; /* Temporarily fib that we need not save GPRs. */
|
|
|
|
|
+ size -= frame->save_libcall_adjustment;
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ insn = emit_insn (gen_gpr_save (GEN_INT (mask)));
|
|
|
|
|
+
|
|
|
|
|
+ RTX_FRAME_RELATED_P (insn) = 1;
|
|
|
|
|
+ REG_NOTES (insn) = dwarf;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Save the registers. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ if ((frame->mask | frame->fmask) != 0)
|
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ HOST_WIDE_INT step1 = MIN (size, riscv_first_stack_step (frame));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ insn = gen_add3_insn (stack_pointer_rtx,
|
|
|
|
|
+ stack_pointer_rtx,
|
|
|
|
|
+ GEN_INT (-step1));
|
|
|
|
|
+ RTX_FRAME_RELATED_P (emit_insn (insn)) = 1;
|
|
|
|
|
+ size -= step1;
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ riscv_for_each_saved_reg (size, riscv_save_reg);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ frame->mask = mask; /* Undo the above fib. */
|
|
|
|
|
+
|
|
|
|
|
+ /* Set up the frame pointer, if we're using one. */
|
|
|
|
|
+ if (frame_pointer_needed)
|
|
|
|
|
+ {
|
|
|
|
|
+ insn = gen_add3_insn (hard_frame_pointer_rtx, stack_pointer_rtx,
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ GEN_INT (frame->hard_frame_pointer_offset - size));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ RTX_FRAME_RELATED_P (emit_insn (insn)) = 1;
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+
|
|
|
|
|
+ riscv_emit_stack_tie ();
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ /* Allocate the rest of the frame. */
|
|
|
|
|
+ if (size > 0)
|
|
|
|
|
+ {
|
|
|
|
|
+ if (SMALL_OPERAND (-size))
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ {
|
|
|
|
|
+ insn = gen_add3_insn (stack_pointer_rtx, stack_pointer_rtx,
|
|
|
|
|
+ GEN_INT (-size));
|
|
|
|
|
+ RTX_FRAME_RELATED_P (emit_insn (insn)) = 1;
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ else
|
|
|
|
|
+ {
|
|
|
|
|
+ riscv_emit_move (RISCV_PROLOGUE_TEMP (Pmode), GEN_INT (-size));
|
|
|
|
|
+ emit_insn (gen_add3_insn (stack_pointer_rtx,
|
|
|
|
|
+ stack_pointer_rtx,
|
|
|
|
|
+ RISCV_PROLOGUE_TEMP (Pmode)));
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ /* Describe the effect of the previous instructions. */
|
|
|
|
|
+ insn = plus_constant (Pmode, stack_pointer_rtx, -size);
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ insn = gen_rtx_SET (stack_pointer_rtx, insn);
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ riscv_set_frame_expr (insn);
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+static rtx
|
|
|
|
|
+riscv_adjust_libcall_cfi_epilogue ()
|
|
|
|
|
+{
|
|
|
|
|
+ rtx dwarf = NULL_RTX;
|
|
|
|
|
+ rtx adjust_sp_rtx, reg;
|
|
|
|
|
+ int saved_size = cfun->machine->frame.save_libcall_adjustment;
|
|
|
|
|
+
|
|
|
|
|
+ /* Debug info for adjust sp. */
|
|
|
|
|
+ adjust_sp_rtx = gen_add3_insn (stack_pointer_rtx,
|
|
|
|
|
+ stack_pointer_rtx, GEN_INT (saved_size));
|
|
|
|
|
+ dwarf = alloc_reg_note (REG_CFA_ADJUST_CFA, adjust_sp_rtx,
|
|
|
|
|
+ dwarf);
|
|
|
|
|
+
|
|
|
|
|
+ for (int regno = GP_REG_FIRST; regno <= GP_REG_LAST-1; regno++)
|
|
|
|
|
+ if (BITSET_P (cfun->machine->frame.mask, regno - GP_REG_FIRST))
|
|
|
|
|
+ {
|
|
|
|
|
+ reg = gen_rtx_REG (SImode, regno);
|
|
|
|
|
+ dwarf = alloc_reg_note (REG_CFA_RESTORE, reg, dwarf);
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ return dwarf;
|
|
|
|
|
+}
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+/* Expand an "epilogue" or "sibcall_epilogue" pattern; SIBCALL_P
|
|
|
|
|
+ says which. */
|
|
|
|
|
+
|
|
|
|
|
+void
|
|
|
|
|
+riscv_expand_epilogue (bool sibcall_p)
|
|
|
|
|
+{
|
|
|
|
|
+ /* Split the frame into two. STEP1 is the amount of stack we should
|
|
|
|
|
+ deallocate before restoring the registers. STEP2 is the amount we
|
|
|
|
|
+ should deallocate afterwards.
|
|
|
|
|
+
|
|
|
|
|
+ Start off by assuming that no registers need to be restored. */
|
|
|
|
|
+ struct riscv_frame_info *frame = &cfun->machine->frame;
|
|
|
|
|
+ unsigned mask = frame->mask;
|
|
|
|
|
+ HOST_WIDE_INT step1 = frame->total_size;
|
|
|
|
|
+ HOST_WIDE_INT step2 = 0;
|
|
|
|
|
+ bool use_restore_libcall = !sibcall_p && riscv_use_save_libcall (frame);
|
|
|
|
|
+ rtx ra = gen_rtx_REG (Pmode, RETURN_ADDR_REGNUM);
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ rtx insn;
|
|
|
|
|
+
|
|
|
|
|
+ /* We need to add memory barrier to prevent read from deallocated stack. */
|
|
|
|
|
+ bool need_barrier_p = (get_frame_size ()
|
|
|
|
|
+ + cfun->machine->frame.arg_pointer_offset) != 0;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ if (!sibcall_p && riscv_can_use_return_insn ())
|
|
|
|
|
+ {
|
|
|
|
|
+ emit_jump_insn (gen_return ());
|
|
|
|
|
+ return;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ /* Move past any dynamic stack allocations. */
|
|
|
|
|
+ if (cfun->calls_alloca)
|
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Emit a barrier to prevent loads from a deallocated stack. */
|
|
|
|
|
+ riscv_emit_stack_tie ();
|
|
|
|
|
+ need_barrier_p = false;
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ rtx adjust = GEN_INT (-frame->hard_frame_pointer_offset);
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ if (!SMALL_OPERAND (INTVAL (adjust)))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ {
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ riscv_emit_move (RISCV_PROLOGUE_TEMP (Pmode), adjust);
|
|
|
|
|
+ adjust = RISCV_PROLOGUE_TEMP (Pmode);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ insn = emit_insn (
|
|
|
|
|
+ gen_add3_insn (stack_pointer_rtx, hard_frame_pointer_rtx,
|
|
|
|
|
+ adjust));
|
|
|
|
|
+
|
|
|
|
|
+ rtx dwarf = NULL_RTX;
|
|
|
|
|
+ rtx cfa_adjust_value = gen_rtx_PLUS (
|
|
|
|
|
+ Pmode, hard_frame_pointer_rtx,
|
|
|
|
|
+ GEN_INT (-frame->hard_frame_pointer_offset));
|
|
|
|
|
+ rtx cfa_adjust_rtx = gen_rtx_SET (stack_pointer_rtx, cfa_adjust_value);
|
|
|
|
|
+ dwarf = alloc_reg_note (REG_CFA_ADJUST_CFA, cfa_adjust_rtx, dwarf);
|
|
|
|
|
+ RTX_FRAME_RELATED_P (insn) = 1;
|
|
|
|
|
+
|
|
|
|
|
+ REG_NOTES (insn) = dwarf;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ /* If we need to restore registers, deallocate as much stack as
|
|
|
|
|
+ possible in the second step without going out of range. */
|
|
|
|
|
+ if ((frame->mask | frame->fmask) != 0)
|
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ step2 = riscv_first_stack_step (frame);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ step1 -= step2;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ /* Set TARGET to BASE + STEP1. */
|
|
|
|
|
+ if (step1 > 0)
|
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Emit a barrier to prevent loads from a deallocated stack. */
|
|
|
|
|
+ riscv_emit_stack_tie ();
|
|
|
|
|
+ need_barrier_p = false;
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ /* Get an rtx for STEP1 that we can add to BASE. */
|
|
|
|
|
+ rtx adjust = GEN_INT (step1);
|
|
|
|
|
+ if (!SMALL_OPERAND (step1))
|
|
|
|
|
+ {
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ riscv_emit_move (RISCV_PROLOGUE_TEMP (Pmode), adjust);
|
|
|
|
|
+ adjust = RISCV_PROLOGUE_TEMP (Pmode);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ insn = emit_insn (
|
|
|
|
|
+ gen_add3_insn (stack_pointer_rtx, stack_pointer_rtx, adjust));
|
|
|
|
|
+
|
|
|
|
|
+ rtx dwarf = NULL_RTX;
|
|
|
|
|
+ rtx cfa_adjust_rtx = gen_rtx_PLUS (Pmode, stack_pointer_rtx,
|
|
|
|
|
+ GEN_INT (step2));
|
|
|
|
|
+
|
|
|
|
|
+ dwarf = alloc_reg_note (REG_CFA_DEF_CFA, cfa_adjust_rtx, dwarf);
|
|
|
|
|
+ RTX_FRAME_RELATED_P (insn) = 1;
|
|
|
|
|
+
|
|
|
|
|
+ REG_NOTES (insn) = dwarf;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ if (use_restore_libcall)
|
|
|
|
|
+ frame->mask = 0; /* Temporarily fib that we need not save GPRs. */
|
|
|
|
|
+
|
|
|
|
|
+ /* Restore the registers. */
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ riscv_for_each_saved_reg (frame->total_size - step2, riscv_restore_reg);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ if (use_restore_libcall)
|
|
|
|
|
+ {
|
|
|
|
|
+ frame->mask = mask; /* Undo the above fib. */
|
|
|
|
|
+ gcc_assert (step2 >= frame->save_libcall_adjustment);
|
|
|
|
|
+ step2 -= frame->save_libcall_adjustment;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (need_barrier_p)
|
|
|
|
|
+ riscv_emit_stack_tie ();
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Deallocate the final bit of the frame. */
|
|
|
|
|
+ if (step2 > 0)
|
|
|
|
|
+ {
|
|
|
|
|
+ insn = emit_insn (gen_add3_insn (stack_pointer_rtx, stack_pointer_rtx,
|
|
|
|
|
+ GEN_INT (step2)));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ rtx dwarf = NULL_RTX;
|
|
|
|
|
+ rtx cfa_adjust_rtx = gen_rtx_PLUS (Pmode, stack_pointer_rtx,
|
|
|
|
|
+ const0_rtx);
|
|
|
|
|
+ dwarf = alloc_reg_note (REG_CFA_DEF_CFA, cfa_adjust_rtx, dwarf);
|
|
|
|
|
+ RTX_FRAME_RELATED_P (insn) = 1;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ REG_NOTES (insn) = dwarf;
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (use_restore_libcall)
|
|
|
|
|
+ {
|
|
|
|
|
+ rtx dwarf = riscv_adjust_libcall_cfi_epilogue ();
|
|
|
|
|
+ insn = emit_insn (gen_gpr_restore (GEN_INT (riscv_save_libcall_count (mask))));
|
|
|
|
|
+ RTX_FRAME_RELATED_P (insn) = 1;
|
|
|
|
|
+ REG_NOTES (insn) = dwarf;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ emit_jump_insn (gen_gpr_restore_return (ra));
|
|
|
|
|
+ return;
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Add in the __builtin_eh_return stack adjustment. */
|
|
|
|
|
+ if (crtl->calls_eh_return)
|
|
|
|
|
+ emit_insn (gen_add3_insn (stack_pointer_rtx, stack_pointer_rtx,
|
|
|
|
|
+ EH_RETURN_STACKADJ_RTX));
|
|
|
|
|
+
|
|
|
|
|
+ if (!sibcall_p)
|
|
|
|
|
+ emit_jump_insn (gen_simple_return_internal (ra));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Return nonzero if this function is known to have a null epilogue.
|
|
|
|
|
+ This allows the optimizer to omit jumps to jumps if no stack
|
|
|
|
|
+ was created. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+bool
|
|
|
|
|
+riscv_can_use_return_insn (void)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ return reload_completed && cfun->machine->frame.total_size == 0;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Implement TARGET_REGISTER_MOVE_COST. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+static int
|
|
|
|
|
+riscv_register_move_cost (enum machine_mode mode,
|
|
|
|
|
+ reg_class_t from, reg_class_t to)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ return SECONDARY_MEMORY_NEEDED (from, to, mode) ? 8 : 2;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Return true if register REGNO can store a value of mode MODE. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+bool
|
|
|
|
|
+riscv_hard_regno_mode_ok_p (unsigned int regno, enum machine_mode mode)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ unsigned int nregs = riscv_hard_regno_nregs (regno, mode);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (GP_REG_P (regno))
|
|
|
|
|
+ {
|
|
|
|
|
+ if (!GP_REG_P (regno + nregs - 1))
|
|
|
|
|
+ return false;
|
|
|
|
|
+ }
|
|
|
|
|
+ else if (FP_REG_P (regno))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (!FP_REG_P (regno + nregs - 1))
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ if (GET_MODE_CLASS (mode) != MODE_FLOAT
|
|
|
|
|
+ && GET_MODE_CLASS (mode) != MODE_COMPLEX_FLOAT)
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ /* Only use callee-saved registers if a potential callee is guaranteed
|
|
|
|
|
+ to spill the requisite width. */
|
|
|
|
|
+ if (GET_MODE_UNIT_SIZE (mode) > UNITS_PER_FP_REG
|
|
|
|
|
+ || (!call_used_regs[regno]
|
|
|
|
|
+ && GET_MODE_UNIT_SIZE (mode) > UNITS_PER_FP_ARG))
|
|
|
|
|
+ return false;
|
|
|
|
|
+ }
|
|
|
|
|
+ else
|
|
|
|
|
+ return false;
|
|
|
|
|
+
|
|
|
|
|
+ /* Require same callee-savedness for all registers. */
|
|
|
|
|
+ for (unsigned i = 1; i < nregs; i++)
|
|
|
|
|
+ if (call_used_regs[regno] != call_used_regs[regno + i])
|
|
|
|
|
+ return false;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ return true;
|
|
|
|
|
+}
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Implement HARD_REGNO_NREGS. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+unsigned int
|
|
|
|
|
+riscv_hard_regno_nregs (int regno, enum machine_mode mode)
|
|
|
|
|
+{
|
|
|
|
|
+ if (FP_REG_P (regno))
|
|
|
|
|
+ return (GET_MODE_SIZE (mode) + UNITS_PER_FP_REG - 1) / UNITS_PER_FP_REG;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* All other registers are word-sized. */
|
|
|
|
|
+ return (GET_MODE_SIZE (mode) + UNITS_PER_WORD - 1) / UNITS_PER_WORD;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Implement CLASS_MAX_NREGS. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+static unsigned char
|
|
|
|
|
+riscv_class_max_nregs (reg_class_t rclass, enum machine_mode mode)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (reg_class_subset_p (FP_REGS, rclass))
|
|
|
|
|
+ return riscv_hard_regno_nregs (FP_REG_FIRST, mode);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (reg_class_subset_p (GR_REGS, rclass))
|
|
|
|
|
+ return riscv_hard_regno_nregs (GP_REG_FIRST, mode);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ return 0;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Implement TARGET_PREFERRED_RELOAD_CLASS. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+static reg_class_t
|
|
|
|
|
+riscv_preferred_reload_class (rtx x ATTRIBUTE_UNUSED, reg_class_t rclass)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ return reg_class_subset_p (FP_REGS, rclass) ? FP_REGS :
|
|
|
|
|
+ reg_class_subset_p (GR_REGS, rclass) ? GR_REGS :
|
|
|
|
|
+ rclass;
|
|
|
|
|
+}
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Implement TARGET_MEMORY_MOVE_COST. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+static int
|
|
|
|
|
+riscv_memory_move_cost (enum machine_mode mode, reg_class_t rclass, bool in)
|
|
|
|
|
+{
|
|
|
|
|
+ return (tune_info->memory_cost
|
|
|
|
|
+ + memory_move_secondary_cost (mode, rclass, in));
|
|
|
|
|
+}
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Return the number of instructions that can be issued per cycle. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+static int
|
|
|
|
|
+riscv_issue_rate (void)
|
|
|
|
|
+{
|
|
|
|
|
+ return tune_info->issue_rate;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Implement TARGET_ASM_FILE_START. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+static void
|
|
|
|
|
+riscv_file_start (void)
|
|
|
|
|
+{
|
|
|
|
|
+ default_file_start ();
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Instruct GAS to generate position-[in]dependent code. */
|
|
|
|
|
+ fprintf (asm_out_file, "\t.option %spic\n", (flag_pic ? "" : "no"));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_ASM_OUTPUT_MI_THUNK. Generate rtl rather than asm text
|
|
|
|
|
+ in order to avoid duplicating too much logic from elsewhere. */
|
|
|
|
|
+
|
|
|
|
|
+static void
|
|
|
|
|
+riscv_output_mi_thunk (FILE *file, tree thunk_fndecl ATTRIBUTE_UNUSED,
|
|
|
|
|
+ HOST_WIDE_INT delta, HOST_WIDE_INT vcall_offset,
|
|
|
|
|
+ tree function)
|
|
|
|
|
+{
|
|
|
|
|
+ rtx this_rtx, temp1, temp2, fnaddr;
|
|
|
|
|
+ rtx_insn *insn;
|
|
|
|
|
+
|
|
|
|
|
+ /* Pretend to be a post-reload pass while generating rtl. */
|
|
|
|
|
+ reload_completed = 1;
|
|
|
|
|
+
|
|
|
|
|
+ /* Mark the end of the (empty) prologue. */
|
|
|
|
|
+ emit_note (NOTE_INSN_PROLOGUE_END);
|
|
|
|
|
+
|
|
|
|
|
+ /* Determine if we can use a sibcall to call FUNCTION directly. */
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ fnaddr = gen_rtx_MEM (FUNCTION_MODE, XEXP (DECL_RTL (function), 0));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ /* We need two temporary registers in some cases. */
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ temp1 = gen_rtx_REG (Pmode, RISCV_PROLOGUE_TEMP_REGNUM);
|
|
|
|
|
+ temp2 = gen_rtx_REG (Pmode, STATIC_CHAIN_REGNUM);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ /* Find out which register contains the "this" pointer. */
|
|
|
|
|
+ if (aggregate_value_p (TREE_TYPE (TREE_TYPE (function)), function))
|
|
|
|
|
+ this_rtx = gen_rtx_REG (Pmode, GP_ARG_FIRST + 1);
|
|
|
|
|
+ else
|
|
|
|
|
+ this_rtx = gen_rtx_REG (Pmode, GP_ARG_FIRST);
|
|
|
|
|
+
|
|
|
|
|
+ /* Add DELTA to THIS_RTX. */
|
|
|
|
|
+ if (delta != 0)
|
|
|
|
|
+ {
|
|
|
|
|
+ rtx offset = GEN_INT (delta);
|
|
|
|
|
+ if (!SMALL_OPERAND (delta))
|
|
|
|
|
+ {
|
|
|
|
|
+ riscv_emit_move (temp1, offset);
|
|
|
|
|
+ offset = temp1;
|
|
|
|
|
+ }
|
|
|
|
|
+ emit_insn (gen_add3_insn (this_rtx, this_rtx, offset));
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ /* If needed, add *(*THIS_RTX + VCALL_OFFSET) to THIS_RTX. */
|
|
|
|
|
+ if (vcall_offset != 0)
|
|
|
|
|
+ {
|
|
|
|
|
+ rtx addr;
|
|
|
|
|
+
|
|
|
|
|
+ /* Set TEMP1 to *THIS_RTX. */
|
|
|
|
|
+ riscv_emit_move (temp1, gen_rtx_MEM (Pmode, this_rtx));
|
|
|
|
|
+
|
|
|
|
|
+ /* Set ADDR to a legitimate address for *THIS_RTX + VCALL_OFFSET. */
|
|
|
|
|
+ addr = riscv_add_offset (temp2, temp1, vcall_offset);
|
|
|
|
|
+
|
|
|
|
|
+ /* Load the offset and add it to THIS_RTX. */
|
|
|
|
|
+ riscv_emit_move (temp1, gen_rtx_MEM (Pmode, addr));
|
|
|
|
|
+ emit_insn (gen_add3_insn (this_rtx, this_rtx, temp1));
|
|
|
|
|
+ }
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Jump to the target function. */
|
|
|
|
|
+ insn = emit_call_insn (gen_sibcall (fnaddr, const0_rtx, NULL, const0_rtx));
|
|
|
|
|
+ SIBLING_CALL_P (insn) = 1;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ /* Run just enough of rest_of_compilation. This sequence was
|
|
|
|
|
+ "borrowed" from alpha.c. */
|
|
|
|
|
+ insn = get_insns ();
|
|
|
|
|
+ split_all_insns_noflow ();
|
|
|
|
|
+ shorten_branches (insn);
|
|
|
|
|
+ final_start_function (insn, file, 1);
|
|
|
|
|
+ final (insn, file, 1);
|
|
|
|
|
+ final_end_function ();
|
|
|
|
|
+
|
|
|
|
|
+ /* Clean up the vars set above. Note that final_end_function resets
|
|
|
|
|
+ the global pointer for us. */
|
|
|
|
|
+ reload_completed = 0;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Allocate a chunk of memory for per-function machine-dependent data. */
|
|
|
|
|
+
|
|
|
|
|
+static struct machine_function *
|
|
|
|
|
+riscv_init_machine_status (void)
|
|
|
|
|
+{
|
|
|
|
|
+ return ggc_cleared_alloc<machine_function> ();
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_OPTION_OVERRIDE. */
|
|
|
|
|
+
|
|
|
|
|
+static void
|
|
|
|
|
+riscv_option_override (void)
|
|
|
|
|
+{
|
|
|
|
|
+ const struct riscv_cpu_info *cpu;
|
|
|
|
|
+
|
|
|
|
|
+#ifdef SUBTARGET_OVERRIDE_OPTIONS
|
|
|
|
|
+ SUBTARGET_OVERRIDE_OPTIONS;
|
|
|
|
|
+#endif
|
|
|
|
|
+
|
|
|
|
|
+ flag_pcc_struct_return = 0;
|
|
|
|
|
+
|
|
|
|
|
+ if (flag_pic)
|
|
|
|
|
+ g_switch_value = 0;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* The presence of the M extension implies that division instructions
|
|
|
|
|
+ are present, so include them unless explicitly disabled. */
|
|
|
|
|
+ if (TARGET_MUL && (target_flags_explicit & MASK_DIV) == 0)
|
|
|
|
|
+ target_flags |= MASK_DIV;
|
|
|
|
|
+ else if (!TARGET_MUL && TARGET_DIV)
|
|
|
|
|
+ error ("-mdiv requires -march to subsume the %<M%> extension");
|
|
|
|
|
+
|
|
|
|
|
+ /* Likewise floating-point division and square root. */
|
|
|
|
|
+ if (TARGET_HARD_FLOAT && (target_flags_explicit & MASK_FDIV) == 0)
|
|
|
|
|
+ target_flags |= MASK_FDIV;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ /* Handle -mtune. */
|
|
|
|
|
+ cpu = riscv_parse_cpu (riscv_tune_string ? riscv_tune_string :
|
|
|
|
|
+ RISCV_TUNE_STRING_DEFAULT);
|
|
|
|
|
+ tune_info = optimize_size ? &optimize_size_tune_info : cpu->tune_info;
|
|
|
|
|
+
|
|
|
|
|
+ /* If the user hasn't specified a branch cost, use the processor's
|
|
|
|
|
+ default. */
|
|
|
|
|
+ if (riscv_branch_cost == 0)
|
|
|
|
|
+ riscv_branch_cost = tune_info->branch_cost;
|
|
|
|
|
+
|
|
|
|
|
+ /* Function to allocate machine-dependent function status. */
|
|
|
|
|
+ init_machine_status = &riscv_init_machine_status;
|
|
|
|
|
+
|
|
|
|
|
+ if (flag_pic)
|
|
|
|
|
+ riscv_cmodel = CM_PIC;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* We get better code with explicit relocs for CM_MEDLOW, but
|
|
|
|
|
+ worse code for the others (for now). Pick the best default. */
|
|
|
|
|
+ if ((target_flags_explicit & MASK_EXPLICIT_RELOCS) == 0)
|
|
|
|
|
+ if (riscv_cmodel == CM_MEDLOW)
|
|
|
|
|
+ target_flags |= MASK_EXPLICIT_RELOCS;
|
|
|
|
|
+
|
|
|
|
|
+ /* Require that the ISA supports the requested floating-point ABI. */
|
|
|
|
|
+ if (UNITS_PER_FP_ARG > (TARGET_HARD_FLOAT ? UNITS_PER_FP_REG : 0))
|
|
|
|
|
+ error ("requested ABI requires -march to subsume the %qc extension",
|
|
|
|
|
+ UNITS_PER_FP_ARG > 8 ? 'Q' : (UNITS_PER_FP_ARG > 4 ? 'D' : 'F'));
|
|
|
|
|
+
|
|
|
|
|
+ /* We do not yet support ILP32 on RV64. */
|
|
|
|
|
+ if (BITS_PER_WORD != POINTER_SIZE)
|
|
|
|
|
+ error ("ABI requires -march=rv%d", POINTER_SIZE);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Implement TARGET_CONDITIONAL_REGISTER_USAGE. */
|
|
|
|
|
+
|
|
|
|
|
+static void
|
|
|
|
|
+riscv_conditional_register_usage (void)
|
|
|
|
|
+{
|
|
|
|
|
+ if (!TARGET_HARD_FLOAT)
|
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ for (int regno = FP_REG_FIRST; regno <= FP_REG_LAST; regno++)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ fixed_regs[regno] = call_used_regs[regno] = 1;
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+/* Return a register priority for hard reg REGNO. */
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+static int
|
|
|
|
|
+riscv_register_priority (int regno)
|
|
|
|
|
+{
|
|
|
|
|
+ /* Favor x8-x15/f8-f15 to improve the odds of RVC instruction selection. */
|
|
|
|
|
+ if (TARGET_RVC && (IN_RANGE (regno, GP_REG_FIRST + 8, GP_REG_FIRST + 15)
|
|
|
|
|
+ || IN_RANGE (regno, FP_REG_FIRST + 8, FP_REG_FIRST + 15)))
|
|
|
|
|
+ return 1;
|
|
|
|
|
+
|
|
|
|
|
+ return 0;
|
|
|
|
|
+}
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+/* Implement TARGET_TRAMPOLINE_INIT. */
|
|
|
|
|
+
|
|
|
|
|
+static void
|
|
|
|
|
+riscv_trampoline_init (rtx m_tramp, tree fndecl, rtx chain_value)
|
|
|
|
|
+{
|
|
|
|
|
+ rtx addr, end_addr, mem;
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ uint32_t trampoline[4];
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ unsigned int i;
|
|
|
|
|
+ HOST_WIDE_INT static_chain_offset, target_function_offset;
|
|
|
|
|
+
|
|
|
|
|
+ /* Work out the offsets of the pointers from the start of the
|
|
|
|
|
+ trampoline code. */
|
|
|
|
|
+ gcc_assert (ARRAY_SIZE (trampoline) * 4 == TRAMPOLINE_CODE_SIZE);
|
|
|
|
|
+
|
|
|
|
|
+ /* Get pointers to the beginning and end of the code block. */
|
|
|
|
|
+ addr = force_reg (Pmode, XEXP (m_tramp, 0));
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ end_addr = riscv_force_binary (Pmode, PLUS, addr,
|
|
|
|
|
+ GEN_INT (TRAMPOLINE_CODE_SIZE));
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+ if (Pmode == SImode)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ {
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ chain_value = force_reg (Pmode, chain_value);
|
|
|
|
|
+
|
|
|
|
|
+ rtx target_function = force_reg (Pmode, XEXP (DECL_RTL (fndecl), 0));
|
|
|
|
|
+ /* lui t2, hi(chain)
|
|
|
|
|
+ lui t1, hi(func)
|
|
|
|
|
+ addi t2, t2, lo(chain)
|
|
|
|
|
+ jr r1, lo(func)
|
|
|
|
|
+ */
|
|
|
|
|
+ unsigned HOST_WIDE_INT lui_hi_chain_code, lui_hi_func_code;
|
|
|
|
|
+ unsigned HOST_WIDE_INT lo_chain_code, lo_func_code;
|
|
|
|
|
+
|
|
|
|
|
+ rtx uimm_mask = force_reg (SImode, gen_int_mode (-IMM_REACH, SImode));
|
|
|
|
|
+
|
|
|
|
|
+ /* 0xfff. */
|
|
|
|
|
+ rtx imm12_mask = gen_reg_rtx (SImode);
|
|
|
|
|
+ emit_insn (gen_one_cmplsi2 (imm12_mask, uimm_mask));
|
|
|
|
|
+
|
|
|
|
|
+ rtx fixup_value = force_reg (SImode, gen_int_mode (IMM_REACH/2, SImode));
|
|
|
|
|
+
|
|
|
|
|
+ /* Gen lui t2, hi(chain). */
|
|
|
|
|
+ rtx hi_chain = riscv_force_binary (SImode, PLUS, chain_value,
|
|
|
|
|
+ fixup_value);
|
|
|
|
|
+ hi_chain = riscv_force_binary (SImode, AND, hi_chain,
|
|
|
|
|
+ uimm_mask);
|
|
|
|
|
+ lui_hi_chain_code = OPCODE_LUI | (STATIC_CHAIN_REGNUM << SHIFT_RD);
|
|
|
|
|
+ rtx lui_hi_chain = riscv_force_binary (SImode, IOR, hi_chain,
|
|
|
|
|
+ gen_int_mode (lui_hi_chain_code, SImode));
|
|
|
|
|
+
|
|
|
|
|
+ mem = adjust_address (m_tramp, SImode, 0);
|
|
|
|
|
+ riscv_emit_move (mem, lui_hi_chain);
|
|
|
|
|
+
|
|
|
|
|
+ /* Gen lui t1, hi(func). */
|
|
|
|
|
+ rtx hi_func = riscv_force_binary (SImode, PLUS, target_function,
|
|
|
|
|
+ fixup_value);
|
|
|
|
|
+ hi_func = riscv_force_binary (SImode, AND, hi_func,
|
|
|
|
|
+ uimm_mask);
|
|
|
|
|
+ lui_hi_func_code = OPCODE_LUI | (RISCV_PROLOGUE_TEMP_REGNUM << SHIFT_RD);
|
|
|
|
|
+ rtx lui_hi_func = riscv_force_binary (SImode, IOR, hi_func,
|
|
|
|
|
+ gen_int_mode (lui_hi_func_code, SImode));
|
|
|
|
|
+
|
|
|
|
|
+ mem = adjust_address (m_tramp, SImode, 1 * GET_MODE_SIZE (SImode));
|
|
|
|
|
+ riscv_emit_move (mem, lui_hi_func);
|
|
|
|
|
+
|
|
|
|
|
+ /* Gen addi t2, t2, lo(chain). */
|
|
|
|
|
+ rtx lo_chain = riscv_force_binary (SImode, AND, chain_value,
|
|
|
|
|
+ imm12_mask);
|
|
|
|
|
+ lo_chain = riscv_force_binary (SImode, ASHIFT, lo_chain, GEN_INT (20));
|
|
|
|
|
+
|
|
|
|
|
+ lo_chain_code = OPCODE_ADDI
|
|
|
|
|
+ | (STATIC_CHAIN_REGNUM << SHIFT_RD)
|
|
|
|
|
+ | (STATIC_CHAIN_REGNUM << SHIFT_RS1);
|
|
|
|
|
+
|
|
|
|
|
+ rtx addi_lo_chain = riscv_force_binary (SImode, IOR, lo_chain,
|
|
|
|
|
+ force_reg (SImode, GEN_INT (lo_chain_code)));
|
|
|
|
|
+
|
|
|
|
|
+ mem = adjust_address (m_tramp, SImode, 2 * GET_MODE_SIZE (SImode));
|
|
|
|
|
+ riscv_emit_move (mem, addi_lo_chain);
|
|
|
|
|
+
|
|
|
|
|
+ /* Gen jr r1, lo(func). */
|
|
|
|
|
+ rtx lo_func = riscv_force_binary (SImode, AND, target_function,
|
|
|
|
|
+ imm12_mask);
|
|
|
|
|
+ lo_func = riscv_force_binary (SImode, ASHIFT, lo_func, GEN_INT (20));
|
|
|
|
|
+
|
|
|
|
|
+ lo_func_code = OPCODE_JALR | (RISCV_PROLOGUE_TEMP_REGNUM << SHIFT_RS1);
|
|
|
|
|
+
|
|
|
|
|
+ rtx jr_lo_func = riscv_force_binary (SImode, IOR, lo_func,
|
|
|
|
|
+ force_reg (SImode, GEN_INT (lo_func_code)));
|
|
|
|
|
+
|
|
|
|
|
+ mem = adjust_address (m_tramp, SImode, 3 * GET_MODE_SIZE (SImode));
|
|
|
|
|
+ riscv_emit_move (mem, jr_lo_func);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ else
|
|
|
|
|
+ {
|
|
|
|
|
+ static_chain_offset = TRAMPOLINE_CODE_SIZE;
|
|
|
|
|
+ target_function_offset = static_chain_offset + GET_MODE_SIZE (ptr_mode);
|
|
|
|
|
+
|
|
|
|
|
+ /* auipc t2, 0
|
|
|
|
|
+ l[wd] t1, target_function_offset(t2)
|
|
|
|
|
+ l[wd] t2, static_chain_offset(t2)
|
|
|
|
|
+ jr t1
|
|
|
|
|
+ */
|
|
|
|
|
+ trampoline[0] = OPCODE_AUIPC | (STATIC_CHAIN_REGNUM << SHIFT_RD);
|
|
|
|
|
+ trampoline[1] = (Pmode == DImode ? OPCODE_LD : OPCODE_LW)
|
|
|
|
|
+ | (RISCV_PROLOGUE_TEMP_REGNUM << SHIFT_RD)
|
|
|
|
|
+ | (STATIC_CHAIN_REGNUM << SHIFT_RS1)
|
|
|
|
|
+ | (target_function_offset << SHIFT_IMM);
|
|
|
|
|
+ trampoline[2] = (Pmode == DImode ? OPCODE_LD : OPCODE_LW)
|
|
|
|
|
+ | (STATIC_CHAIN_REGNUM << SHIFT_RD)
|
|
|
|
|
+ | (STATIC_CHAIN_REGNUM << SHIFT_RS1)
|
|
|
|
|
+ | (static_chain_offset << SHIFT_IMM);
|
|
|
|
|
+ trampoline[3] = OPCODE_JALR | (RISCV_PROLOGUE_TEMP_REGNUM << SHIFT_RS1);
|
|
|
|
|
+
|
|
|
|
|
+ /* Copy the trampoline code. */
|
|
|
|
|
+ for (i = 0; i < ARRAY_SIZE (trampoline); i++)
|
|
|
|
|
+ {
|
|
|
|
|
+ mem = adjust_address (m_tramp, SImode, i * GET_MODE_SIZE (SImode));
|
|
|
|
|
+ riscv_emit_move (mem, gen_int_mode (trampoline[i], SImode));
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Set up the static chain pointer field. */
|
|
|
|
|
+ mem = adjust_address (m_tramp, ptr_mode, static_chain_offset);
|
|
|
|
|
+ riscv_emit_move (mem, chain_value);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Set up the target function field. */
|
|
|
|
|
+ mem = adjust_address (m_tramp, ptr_mode, target_function_offset);
|
|
|
|
|
+ riscv_emit_move (mem, XEXP (DECL_RTL (fndecl), 0));
|
|
|
|
|
+ }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ /* Flush the code part of the trampoline. */
|
|
|
|
|
+ emit_insn (gen_add3_insn (end_addr, addr, GEN_INT (TRAMPOLINE_SIZE)));
|
|
|
|
|
+ emit_insn (gen_clear_cache (addr, end_addr));
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Return leaf_function_p () and memoize the result. */
|
|
|
|
|
+
|
|
|
|
|
+static bool
|
|
|
|
|
+riscv_leaf_function_p (void)
|
|
|
|
|
+{
|
|
|
|
|
+ if (cfun->machine->is_leaf == 0)
|
|
|
|
|
+ cfun->machine->is_leaf = leaf_function_p () ? 1 : -1;
|
|
|
|
|
+
|
|
|
|
|
+ return cfun->machine->is_leaf > 0;
|
|
|
|
|
+}
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+/* Implement TARGET_FUNCTION_OK_FOR_SIBCALL. */
|
|
|
|
|
+
|
|
|
|
|
+static bool
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+riscv_function_ok_for_sibcall (tree decl ATTRIBUTE_UNUSED,
|
|
|
|
|
+ tree exp ATTRIBUTE_UNUSED)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* When optimzing for size, don't use sibcalls in non-leaf routines */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ if (TARGET_SAVE_RESTORE)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ return riscv_leaf_function_p ();
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ return true;
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Implement TARGET_CANNOT_COPY_INSN_P. */
|
|
|
|
|
+
|
|
|
|
|
+static bool
|
|
|
|
|
+riscv_cannot_copy_insn_p (rtx_insn *insn)
|
|
|
|
|
+{
|
|
|
|
|
+ return recog_memoized (insn) >= 0 && get_attr_cannot_copy (insn);
|
|
|
|
|
+}
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+/* Initialize the GCC target structure. */
|
|
|
|
|
+#undef TARGET_ASM_ALIGNED_HI_OP
|
|
|
|
|
+#define TARGET_ASM_ALIGNED_HI_OP "\t.half\t"
|
|
|
|
|
+#undef TARGET_ASM_ALIGNED_SI_OP
|
|
|
|
|
+#define TARGET_ASM_ALIGNED_SI_OP "\t.word\t"
|
|
|
|
|
+#undef TARGET_ASM_ALIGNED_DI_OP
|
|
|
|
|
+#define TARGET_ASM_ALIGNED_DI_OP "\t.dword\t"
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_OPTION_OVERRIDE
|
|
|
|
|
+#define TARGET_OPTION_OVERRIDE riscv_option_override
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_LEGITIMIZE_ADDRESS
|
|
|
|
|
+#define TARGET_LEGITIMIZE_ADDRESS riscv_legitimize_address
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_SCHED_ISSUE_RATE
|
|
|
|
|
+#define TARGET_SCHED_ISSUE_RATE riscv_issue_rate
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_FUNCTION_OK_FOR_SIBCALL
|
|
|
|
|
+#define TARGET_FUNCTION_OK_FOR_SIBCALL riscv_function_ok_for_sibcall
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_REGISTER_MOVE_COST
|
|
|
|
|
+#define TARGET_REGISTER_MOVE_COST riscv_register_move_cost
|
|
|
|
|
+#undef TARGET_MEMORY_MOVE_COST
|
|
|
|
|
+#define TARGET_MEMORY_MOVE_COST riscv_memory_move_cost
|
|
|
|
|
+#undef TARGET_RTX_COSTS
|
|
|
|
|
+#define TARGET_RTX_COSTS riscv_rtx_costs
|
|
|
|
|
+#undef TARGET_ADDRESS_COST
|
|
|
|
|
+#define TARGET_ADDRESS_COST riscv_address_cost
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_PREFERRED_RELOAD_CLASS
|
|
|
|
|
+#define TARGET_PREFERRED_RELOAD_CLASS riscv_preferred_reload_class
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#undef TARGET_ASM_FILE_START
|
|
|
|
|
+#define TARGET_ASM_FILE_START riscv_file_start
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+#undef TARGET_ASM_FILE_START_FILE_DIRECTIVE
|
|
|
|
|
+#define TARGET_ASM_FILE_START_FILE_DIRECTIVE true
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_EXPAND_BUILTIN_VA_START
|
|
|
|
|
+#define TARGET_EXPAND_BUILTIN_VA_START riscv_va_start
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_PROMOTE_FUNCTION_MODE
|
|
|
|
|
+#define TARGET_PROMOTE_FUNCTION_MODE default_promote_function_mode_always_promote
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_RETURN_IN_MEMORY
|
|
|
|
|
+#define TARGET_RETURN_IN_MEMORY riscv_return_in_memory
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_ASM_OUTPUT_MI_THUNK
|
|
|
|
|
+#define TARGET_ASM_OUTPUT_MI_THUNK riscv_output_mi_thunk
|
|
|
|
|
+#undef TARGET_ASM_CAN_OUTPUT_MI_THUNK
|
|
|
|
|
+#define TARGET_ASM_CAN_OUTPUT_MI_THUNK hook_bool_const_tree_hwi_hwi_const_tree_true
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_PRINT_OPERAND
|
|
|
|
|
+#define TARGET_PRINT_OPERAND riscv_print_operand
|
|
|
|
|
+#undef TARGET_PRINT_OPERAND_ADDRESS
|
|
|
|
|
+#define TARGET_PRINT_OPERAND_ADDRESS riscv_print_operand_address
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_SETUP_INCOMING_VARARGS
|
|
|
|
|
+#define TARGET_SETUP_INCOMING_VARARGS riscv_setup_incoming_varargs
|
|
|
|
|
+#undef TARGET_STRICT_ARGUMENT_NAMING
|
|
|
|
|
+#define TARGET_STRICT_ARGUMENT_NAMING hook_bool_CUMULATIVE_ARGS_true
|
|
|
|
|
+#undef TARGET_MUST_PASS_IN_STACK
|
|
|
|
|
+#define TARGET_MUST_PASS_IN_STACK must_pass_in_stack_var_size
|
|
|
|
|
+#undef TARGET_PASS_BY_REFERENCE
|
|
|
|
|
+#define TARGET_PASS_BY_REFERENCE riscv_pass_by_reference
|
|
|
|
|
+#undef TARGET_ARG_PARTIAL_BYTES
|
|
|
|
|
+#define TARGET_ARG_PARTIAL_BYTES riscv_arg_partial_bytes
|
|
|
|
|
+#undef TARGET_FUNCTION_ARG
|
|
|
|
|
+#define TARGET_FUNCTION_ARG riscv_function_arg
|
|
|
|
|
+#undef TARGET_FUNCTION_ARG_ADVANCE
|
|
|
|
|
+#define TARGET_FUNCTION_ARG_ADVANCE riscv_function_arg_advance
|
|
|
|
|
+#undef TARGET_FUNCTION_ARG_BOUNDARY
|
|
|
|
|
+#define TARGET_FUNCTION_ARG_BOUNDARY riscv_function_arg_boundary
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* The generic ELF target does not always have TLS support. */
|
|
|
|
|
+#ifdef HAVE_AS_TLS
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+#undef TARGET_HAVE_TLS
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define TARGET_HAVE_TLS true
|
|
|
|
|
+#endif
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_CANNOT_FORCE_CONST_MEM
|
|
|
|
|
+#define TARGET_CANNOT_FORCE_CONST_MEM riscv_cannot_force_const_mem
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_LEGITIMATE_CONSTANT_P
|
|
|
|
|
+#define TARGET_LEGITIMATE_CONSTANT_P riscv_legitimate_constant_p
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_USE_BLOCKS_FOR_CONSTANT_P
|
|
|
|
|
+#define TARGET_USE_BLOCKS_FOR_CONSTANT_P hook_bool_mode_const_rtx_true
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_LEGITIMATE_ADDRESS_P
|
|
|
|
|
+#define TARGET_LEGITIMATE_ADDRESS_P riscv_legitimate_address_p
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_CAN_ELIMINATE
|
|
|
|
|
+#define TARGET_CAN_ELIMINATE riscv_can_eliminate
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_CONDITIONAL_REGISTER_USAGE
|
|
|
|
|
+#define TARGET_CONDITIONAL_REGISTER_USAGE riscv_conditional_register_usage
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+#undef TARGET_CLASS_MAX_NREGS
|
|
|
|
|
+#define TARGET_CLASS_MAX_NREGS riscv_class_max_nregs
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+#undef TARGET_TRAMPOLINE_INIT
|
|
|
|
|
+#define TARGET_TRAMPOLINE_INIT riscv_trampoline_init
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_IN_SMALL_DATA_P
|
|
|
|
|
+#define TARGET_IN_SMALL_DATA_P riscv_in_small_data_p
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_ASM_SELECT_RTX_SECTION
|
|
|
|
|
+#define TARGET_ASM_SELECT_RTX_SECTION riscv_elf_select_rtx_section
|
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_MIN_ANCHOR_OFFSET
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+#define TARGET_MIN_ANCHOR_OFFSET (-IMM_REACH/2)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+#undef TARGET_MAX_ANCHOR_OFFSET
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+#define TARGET_MAX_ANCHOR_OFFSET (IMM_REACH/2-1)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+#undef TARGET_REGISTER_PRIORITY
|
|
|
|
|
+#define TARGET_REGISTER_PRIORITY riscv_register_priority
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#undef TARGET_CANNOT_COPY_INSN_P
|
|
|
|
|
+#define TARGET_CANNOT_COPY_INSN_P riscv_cannot_copy_insn_p
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#undef TARGET_ATOMIC_ASSIGN_EXPAND_FENV
|
|
|
|
|
+#define TARGET_ATOMIC_ASSIGN_EXPAND_FENV riscv_atomic_assign_expand_fenv
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#undef TARGET_INIT_BUILTINS
|
|
|
|
|
+#define TARGET_INIT_BUILTINS riscv_init_builtins
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#undef TARGET_BUILTIN_DECL
|
|
|
|
|
+#define TARGET_BUILTIN_DECL riscv_builtin_decl
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#undef TARGET_EXPAND_BUILTIN
|
|
|
|
|
+#define TARGET_EXPAND_BUILTIN riscv_expand_builtin
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+struct gcc_target targetm = TARGET_INITIALIZER;
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#include "gt-riscv.h"
|
|
|
|
|
diff --git original-gcc/gcc/config/riscv/riscv.h gcc-6.3.0/gcc/config/riscv/riscv.h
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..8d4c75e6770
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/riscv.h
|
|
|
|
|
@@ -0,0 +1,906 @@
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+/* Definition of RISC-V target for GNU compiler.
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ Copyright (C) 2011-2017 Free Software Foundation, Inc.
|
|
|
|
|
+ Contributed by Andrew Waterman (andrew@sifive.com).
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ Based on MIPS target for GNU compiler.
|
|
|
|
|
+
|
|
|
|
|
+This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+GCC is free software; you can redistribute it and/or modify
|
|
|
|
|
+it under the terms of the GNU General Public License as published by
|
|
|
|
|
+the Free Software Foundation; either version 3, or (at your option)
|
|
|
|
|
+any later version.
|
|
|
|
|
+
|
|
|
|
|
+GCC is distributed in the hope that it will be useful,
|
|
|
|
|
+but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
+GNU General Public License for more details.
|
|
|
|
|
+
|
|
|
|
|
+You should have received a copy of the GNU General Public License
|
|
|
|
|
+along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+<http://www.gnu.org/licenses/>. */
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#ifndef GCC_RISCV_H
|
|
|
|
|
+#define GCC_RISCV_H
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#include "config/riscv/riscv-opts.h"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Target CPU builtins. */
|
|
|
|
|
+#define TARGET_CPU_CPP_BUILTINS() riscv_cpu_cpp_builtins (pfile)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Default target_flags if no switches are specified */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#ifndef TARGET_DEFAULT
|
|
|
|
|
+#define TARGET_DEFAULT 0
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+#endif
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#ifndef RISCV_TUNE_STRING_DEFAULT
|
|
|
|
|
+#define RISCV_TUNE_STRING_DEFAULT "rocket"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+#endif
|
|
|
|
|
+
|
|
|
|
|
+/* Support for a compile-time default CPU, et cetera. The rules are:
|
|
|
|
|
+ --with-arch is ignored if -march is specified.
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ --with-abi is ignored if -mabi is specified.
|
|
|
|
|
+ --with-tune is ignored if -mtune is specified. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+#define OPTION_DEFAULT_SPECS \
|
|
|
|
|
+ {"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ {"arch", "%{!march=*:-march=%(VALUE)}" }, \
|
|
|
|
|
+ {"abi", "%{!mabi=*:-mabi=%(VALUE)}" }, \
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+#ifdef IN_LIBGCC2
|
|
|
|
|
+#undef TARGET_64BIT
|
|
|
|
|
+/* Make this compile time constant for libgcc2 */
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define TARGET_64BIT (__riscv_xlen == 64)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+#endif /* IN_LIBGCC2 */
|
|
|
|
|
+
|
|
|
|
|
+#undef ASM_SPEC
|
|
|
|
|
+#define ASM_SPEC "\
|
|
|
|
|
+%(subtarget_asm_debugging_spec) \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+%{" FPIE_OR_FPIC_SPEC ":-fpic} \
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+%{march=*} \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+%{mabi=*} \
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+%(subtarget_asm_spec)"
|
|
|
|
|
+
|
|
|
|
|
+#define TARGET_DEFAULT_CMODEL CM_MEDLOW
|
|
|
|
|
+
|
|
|
|
|
+#define LOCAL_LABEL_PREFIX "."
|
|
|
|
|
+#define USER_LABEL_PREFIX ""
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Offsets recorded in opcodes are a multiple of this alignment factor.
|
|
|
|
|
+ The default for this in 64-bit mode is 8, which causes problems with
|
|
|
|
|
+ SFmode register saves. */
|
|
|
|
|
+#define DWARF_CIE_DATA_ALIGNMENT -4
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+/* The mapping from gcc register number to DWARF 2 CFA column number. */
|
|
|
|
|
+#define DWARF_FRAME_REGNUM(REGNO) \
|
|
|
|
|
+ (GP_REG_P (REGNO) || FP_REG_P (REGNO) ? REGNO : INVALID_REGNUM)
|
|
|
|
|
+
|
|
|
|
|
+/* The DWARF 2 CFA column which tracks the return address. */
|
|
|
|
|
+#define DWARF_FRAME_RETURN_COLUMN RETURN_ADDR_REGNUM
|
|
|
|
|
+#define INCOMING_RETURN_ADDR_RTX gen_rtx_REG (VOIDmode, RETURN_ADDR_REGNUM)
|
|
|
|
|
+
|
|
|
|
|
+/* Describe how we implement __builtin_eh_return. */
|
|
|
|
|
+#define EH_RETURN_DATA_REGNO(N) \
|
|
|
|
|
+ ((N) < 4 ? (N) + GP_ARG_FIRST : INVALID_REGNUM)
|
|
|
|
|
+
|
|
|
|
|
+#define EH_RETURN_STACKADJ_RTX gen_rtx_REG (Pmode, GP_ARG_FIRST + 4)
|
|
|
|
|
+
|
|
|
|
|
+/* Target machine storage layout */
|
|
|
|
|
+
|
|
|
|
|
+#define BITS_BIG_ENDIAN 0
|
|
|
|
|
+#define BYTES_BIG_ENDIAN 0
|
|
|
|
|
+#define WORDS_BIG_ENDIAN 0
|
|
|
|
|
+
|
|
|
|
|
+#define MAX_BITS_PER_WORD 64
|
|
|
|
|
+
|
|
|
|
|
+/* Width of a word, in units (bytes). */
|
|
|
|
|
+#define UNITS_PER_WORD (TARGET_64BIT ? 8 : 4)
|
|
|
|
|
+#ifndef IN_LIBGCC2
|
|
|
|
|
+#define MIN_UNITS_PER_WORD 4
|
|
|
|
|
+#endif
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* The `Q' extension is not yet supported. */
|
|
|
|
|
+#define UNITS_PER_FP_REG (TARGET_DOUBLE_FLOAT ? 8 : 4)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* The largest type that can be passed in floating-point registers. */
|
|
|
|
|
+#define UNITS_PER_FP_ARG \
|
|
|
|
|
+ (riscv_abi == ABI_ILP32 || riscv_abi == ABI_LP64 ? 0 : \
|
|
|
|
|
+ riscv_abi == ABI_ILP32F || riscv_abi == ABI_LP64F ? 4 : 8) \
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+/* Set the sizes of the core types. */
|
|
|
|
|
+#define SHORT_TYPE_SIZE 16
|
|
|
|
|
+#define INT_TYPE_SIZE 32
|
|
|
|
|
+#define LONG_LONG_TYPE_SIZE 64
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define POINTER_SIZE (riscv_abi >= ABI_LP64 ? 64 : 32)
|
|
|
|
|
+#define LONG_TYPE_SIZE POINTER_SIZE
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+#define FLOAT_TYPE_SIZE 32
|
|
|
|
|
+#define DOUBLE_TYPE_SIZE 64
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define LONG_DOUBLE_TYPE_SIZE 128
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+/* Allocation boundary (in *bits*) for storing arguments in argument list. */
|
|
|
|
|
+#define PARM_BOUNDARY BITS_PER_WORD
|
|
|
|
|
+
|
|
|
|
|
+/* Allocation boundary (in *bits*) for the code of a function. */
|
|
|
|
|
+#define FUNCTION_BOUNDARY (TARGET_RVC ? 16 : 32)
|
|
|
|
|
+
|
|
|
|
|
+/* There is no point aligning anything to a rounder boundary than this. */
|
|
|
|
|
+#define BIGGEST_ALIGNMENT 128
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* The user-level ISA permits misaligned accesses, but they may execute
|
|
|
|
|
+ extremely slowly and non-atomically. Some privileged architectures
|
|
|
|
|
+ do not permit them at all. It is best to enforce strict alignment. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+#define STRICT_ALIGNMENT 1
|
|
|
|
|
+
|
|
|
|
|
+/* Define this if you wish to imitate the way many other C compilers
|
|
|
|
|
+ handle alignment of bitfields and the structures that contain
|
|
|
|
|
+ them.
|
|
|
|
|
+
|
|
|
|
|
+ The behavior is that the type written for a bit-field (`int',
|
|
|
|
|
+ `short', or other integer type) imposes an alignment for the
|
|
|
|
|
+ entire structure, as if the structure really did contain an
|
|
|
|
|
+ ordinary field of that type. In addition, the bit-field is placed
|
|
|
|
|
+ within the structure so that it would fit within such a field,
|
|
|
|
|
+ not crossing a boundary for it.
|
|
|
|
|
+
|
|
|
|
|
+ Thus, on most machines, a bit-field whose type is written as `int'
|
|
|
|
|
+ would not cross a four-byte boundary, and would force four-byte
|
|
|
|
|
+ alignment for the whole structure. (The alignment used may not
|
|
|
|
|
+ be four bytes; it is controlled by the other alignment
|
|
|
|
|
+ parameters.)
|
|
|
|
|
+
|
|
|
|
|
+ If the macro is defined, its definition should be a C expression;
|
|
|
|
|
+ a nonzero value for the expression enables this behavior. */
|
|
|
|
|
+
|
|
|
|
|
+#define PCC_BITFIELD_TYPE_MATTERS 1
|
|
|
|
|
+
|
|
|
|
|
+/* If defined, a C expression to compute the alignment given to a
|
|
|
|
|
+ constant that is being placed in memory. CONSTANT is the constant
|
|
|
|
|
+ and ALIGN is the alignment that the object would ordinarily have.
|
|
|
|
|
+ The value of this macro is used instead of that alignment to align
|
|
|
|
|
+ the object.
|
|
|
|
|
+
|
|
|
|
|
+ If this macro is not defined, then ALIGN is used.
|
|
|
|
|
+
|
|
|
|
|
+ The typical use of this macro is to increase alignment for string
|
|
|
|
|
+ constants to be word aligned so that `strcpy' calls that copy
|
|
|
|
|
+ constants can be done inline. */
|
|
|
|
|
+
|
|
|
|
|
+#define CONSTANT_ALIGNMENT(EXP, ALIGN) \
|
|
|
|
|
+ ((TREE_CODE (EXP) == STRING_CST || TREE_CODE (EXP) == CONSTRUCTOR) \
|
|
|
|
|
+ && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN))
|
|
|
|
|
+
|
|
|
|
|
+/* If defined, a C expression to compute the alignment for a static
|
|
|
|
|
+ variable. TYPE is the data type, and ALIGN is the alignment that
|
|
|
|
|
+ the object would ordinarily have. The value of this macro is used
|
|
|
|
|
+ instead of that alignment to align the object.
|
|
|
|
|
+
|
|
|
|
|
+ If this macro is not defined, then ALIGN is used.
|
|
|
|
|
+
|
|
|
|
|
+ One use of this macro is to increase alignment of medium-size
|
|
|
|
|
+ data to make it all fit in fewer cache lines. Another is to
|
|
|
|
|
+ cause character arrays to be word-aligned so that `strcpy' calls
|
|
|
|
|
+ that copy constants to character arrays can be done inline. */
|
|
|
|
|
+
|
|
|
|
|
+#define DATA_ALIGNMENT(TYPE, ALIGN) \
|
|
|
|
|
+ ((((ALIGN) < BITS_PER_WORD) \
|
|
|
|
|
+ && (TREE_CODE (TYPE) == ARRAY_TYPE \
|
|
|
|
|
+ || TREE_CODE (TYPE) == UNION_TYPE \
|
|
|
|
|
+ || TREE_CODE (TYPE) == RECORD_TYPE)) ? BITS_PER_WORD : (ALIGN))
|
|
|
|
|
+
|
|
|
|
|
+/* We need this for the same reason as DATA_ALIGNMENT, namely to cause
|
|
|
|
|
+ character arrays to be word-aligned so that `strcpy' calls that copy
|
|
|
|
|
+ constants to character arrays can be done inline, and 'strcmp' can be
|
|
|
|
|
+ optimised to use word loads. */
|
|
|
|
|
+#define LOCAL_ALIGNMENT(TYPE, ALIGN) \
|
|
|
|
|
+ DATA_ALIGNMENT (TYPE, ALIGN)
|
|
|
|
|
+
|
|
|
|
|
+/* Define if operations between registers always perform the operation
|
|
|
|
|
+ on the full register even if a narrower mode is specified. */
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define WORD_REGISTER_OPERATIONS 1
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+/* When in 64-bit mode, move insns will sign extend SImode and CCmode
|
|
|
|
|
+ moves. All other references are zero extended. */
|
|
|
|
|
+#define LOAD_EXTEND_OP(MODE) \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (TARGET_64BIT && (MODE) == SImode ? SIGN_EXTEND : ZERO_EXTEND)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+/* Define this macro if it is advisable to hold scalars in registers
|
|
|
|
|
+ in a wider mode than that declared by the program. In such cases,
|
|
|
|
|
+ the value is constrained to be within the bounds of the declared
|
|
|
|
|
+ type, but kept valid in the wider mode. The signedness of the
|
|
|
|
|
+ extension may differ from that of the type. */
|
|
|
|
|
+
|
|
|
|
|
+#define PROMOTE_MODE(MODE, UNSIGNEDP, TYPE) \
|
|
|
|
|
+ if (GET_MODE_CLASS (MODE) == MODE_INT \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ && GET_MODE_SIZE (MODE) < UNITS_PER_WORD) \
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ { \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if ((MODE) == SImode) \
|
|
|
|
|
+ (UNSIGNEDP) = 0; \
|
|
|
|
|
+ (MODE) = word_mode; \
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+/* Pmode is always the same as ptr_mode, but not always the same as word_mode.
|
|
|
|
|
+ Extensions of pointers to word_mode must be signed. */
|
|
|
|
|
+#define POINTERS_EXTEND_UNSIGNED false
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+/* When floating-point registers are wider than integer ones, moves between
|
|
|
|
|
+ them must go through memory. */
|
|
|
|
|
+#define SECONDARY_MEMORY_NEEDED(CLASS1,CLASS2,MODE) \
|
|
|
|
|
+ (GET_MODE_SIZE (MODE) > UNITS_PER_WORD \
|
|
|
|
|
+ && ((CLASS1) == FP_REGS) != ((CLASS2) == FP_REGS))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+/* Define if loading short immediate values into registers sign extends. */
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define SHORT_IMMEDIATES_SIGN_EXTEND 1
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+/* Standard register usage. */
|
|
|
|
|
+
|
|
|
|
|
+/* Number of hardware registers. We have:
|
|
|
|
|
+
|
|
|
|
|
+ - 32 integer registers
|
|
|
|
|
+ - 32 floating point registers
|
|
|
|
|
+ - 2 fake registers:
|
|
|
|
|
+ - ARG_POINTER_REGNUM
|
|
|
|
|
+ - FRAME_POINTER_REGNUM */
|
|
|
|
|
+
|
|
|
|
|
+#define FIRST_PSEUDO_REGISTER 66
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* x0, sp, gp, and tp are fixed. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+#define FIXED_REGISTERS \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+{ /* General registers. */ \
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
|
|
|
|
|
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Floating-point registers. */ \
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
|
|
|
|
|
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Others. */ \
|
|
|
|
|
+ 1, 1 \
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* a0-a7, t0-a6, fa0-fa7, and ft0-ft11 are volatile across calls.
|
|
|
|
|
+ The call RTLs themselves clobber ra. */
|
|
|
|
|
+
|
|
|
|
|
+#define CALL_USED_REGISTERS \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+{ /* General registers. */ \
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, \
|
|
|
|
|
+ 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Floating-point registers. */ \
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, \
|
|
|
|
|
+ 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Others. */ \
|
|
|
|
|
+ 1, 1 \
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+}
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Internal macros to classify an ISA register's type. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+#define GP_REG_FIRST 0
|
|
|
|
|
+#define GP_REG_LAST 31
|
|
|
|
|
+#define GP_REG_NUM (GP_REG_LAST - GP_REG_FIRST + 1)
|
|
|
|
|
+
|
|
|
|
|
+#define FP_REG_FIRST 32
|
|
|
|
|
+#define FP_REG_LAST 63
|
|
|
|
|
+#define FP_REG_NUM (FP_REG_LAST - FP_REG_FIRST + 1)
|
|
|
|
|
+
|
|
|
|
|
+/* The DWARF 2 CFA column which tracks the return address from a
|
|
|
|
|
+ signal handler context. This means that to maintain backwards
|
|
|
|
|
+ compatibility, no hard register can be assigned this column if it
|
|
|
|
|
+ would need to be handled by the DWARF unwinder. */
|
|
|
|
|
+#define DWARF_ALT_FRAME_RETURN_COLUMN 64
|
|
|
|
|
+
|
|
|
|
|
+#define GP_REG_P(REGNO) \
|
|
|
|
|
+ ((unsigned int) ((int) (REGNO) - GP_REG_FIRST) < GP_REG_NUM)
|
|
|
|
|
+#define FP_REG_P(REGNO) \
|
|
|
|
|
+ ((unsigned int) ((int) (REGNO) - FP_REG_FIRST) < FP_REG_NUM)
|
|
|
|
|
+
|
|
|
|
|
+#define FP_REG_RTX_P(X) (REG_P (X) && FP_REG_P (REGNO (X)))
|
|
|
|
|
+
|
|
|
|
|
+#define HARD_REGNO_NREGS(REGNO, MODE) riscv_hard_regno_nregs (REGNO, MODE)
|
|
|
|
|
+
|
|
|
|
|
+#define HARD_REGNO_MODE_OK(REGNO, MODE) \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ riscv_hard_regno_mode_ok_p (REGNO, MODE)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Don't allow floating-point modes to be tied, since type punning of
|
|
|
|
|
+ single-precision and double-precision is implementation defined. */
|
|
|
|
|
+#define MODES_TIEABLE_P(MODE1, MODE2) \
|
|
|
|
|
+ ((MODE1) == (MODE2) \
|
|
|
|
|
+ || !(GET_MODE_CLASS (MODE1) == MODE_FLOAT \
|
|
|
|
|
+ && GET_MODE_CLASS (MODE2) == MODE_FLOAT))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Use s0 as the frame pointer if it is so requested. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+#define HARD_FRAME_POINTER_REGNUM 8
|
|
|
|
|
+#define STACK_POINTER_REGNUM 2
|
|
|
|
|
+#define THREAD_POINTER_REGNUM 4
|
|
|
|
|
+
|
|
|
|
|
+/* These two registers don't really exist: they get eliminated to either
|
|
|
|
|
+ the stack or hard frame pointer. */
|
|
|
|
|
+#define ARG_POINTER_REGNUM 64
|
|
|
|
|
+#define FRAME_POINTER_REGNUM 65
|
|
|
|
|
+
|
|
|
|
|
+/* Register in which static-chain is passed to a function. */
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define STATIC_CHAIN_REGNUM (GP_TEMP_FIRST + 2)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+/* Registers used as temporaries in prologue/epilogue code.
|
|
|
|
|
+
|
|
|
|
|
+ The prologue registers mustn't conflict with any
|
|
|
|
|
+ incoming arguments, the static chain pointer, or the frame pointer.
|
|
|
|
|
+ The epilogue temporary mustn't conflict with the return registers,
|
|
|
|
|
+ the frame pointer, the EH stack adjustment, or the EH data registers. */
|
|
|
|
|
+
|
|
|
|
|
+#define RISCV_PROLOGUE_TEMP_REGNUM (GP_TEMP_FIRST + 1)
|
|
|
|
|
+#define RISCV_PROLOGUE_TEMP(MODE) gen_rtx_REG (MODE, RISCV_PROLOGUE_TEMP_REGNUM)
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define MCOUNT_NAME "_mcount"
|
|
|
|
|
+
|
|
|
|
|
+#define NO_PROFILE_COUNTERS 1
|
|
|
|
|
+
|
|
|
|
|
+/* Emit rtl for profiling. Output assembler code to FILE
|
|
|
|
|
+ to call "_mcount" for profiling a function entry. */
|
|
|
|
|
+#define PROFILE_HOOK(LABEL) \
|
|
|
|
|
+ { \
|
|
|
|
|
+ rtx fun, ra; \
|
|
|
|
|
+ ra = get_hard_reg_initial_val (Pmode, RETURN_ADDR_REGNUM); \
|
|
|
|
|
+ fun = gen_rtx_SYMBOL_REF (Pmode, MCOUNT_NAME); \
|
|
|
|
|
+ emit_library_call (fun, LCT_NORMAL, VOIDmode, 1, ra, Pmode); \
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+/* All the work done in PROFILE_HOOK, but still required. */
|
|
|
|
|
+#define FUNCTION_PROFILER(STREAM, LABELNO) do { } while (0)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+/* Define this macro if it is as good or better to call a constant
|
|
|
|
|
+ function address than to call an address kept in a register. */
|
|
|
|
|
+#define NO_FUNCTION_CSE 1
|
|
|
|
|
+
|
|
|
|
|
+/* Define the classes of registers for register constraints in the
|
|
|
|
|
+ machine description. Also define ranges of constants.
|
|
|
|
|
+
|
|
|
|
|
+ One of the classes must always be named ALL_REGS and include all hard regs.
|
|
|
|
|
+ If there is more than one class, another class must be named NO_REGS
|
|
|
|
|
+ and contain no registers.
|
|
|
|
|
+
|
|
|
|
|
+ The name GENERAL_REGS must be the name of a class (or an alias for
|
|
|
|
|
+ another name such as ALL_REGS). This is the class of registers
|
|
|
|
|
+ that is allowed by "g" or "r" in a register constraint.
|
|
|
|
|
+ Also, registers outside this class are allocated only when
|
|
|
|
|
+ instructions express preferences for them.
|
|
|
|
|
+
|
|
|
|
|
+ The classes must be numbered in nondecreasing order; that is,
|
|
|
|
|
+ a larger-numbered class must never be contained completely
|
|
|
|
|
+ in a smaller-numbered class.
|
|
|
|
|
+
|
|
|
|
|
+ For any two classes, it is very desirable that there be another
|
|
|
|
|
+ class that represents their union. */
|
|
|
|
|
+
|
|
|
|
|
+enum reg_class
|
|
|
|
|
+{
|
|
|
|
|
+ NO_REGS, /* no registers in set */
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ SIBCALL_REGS, /* registers used by indirect sibcalls */
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ JALR_REGS, /* registers used by indirect calls */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ GR_REGS, /* integer registers */
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ FP_REGS, /* floating-point registers */
|
|
|
|
|
+ FRAME_REGS, /* arg pointer and frame pointer */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ALL_REGS, /* all registers */
|
|
|
|
|
+ LIM_REG_CLASSES /* max value + 1 */
|
|
|
|
|
+};
|
|
|
|
|
+
|
|
|
|
|
+#define N_REG_CLASSES (int) LIM_REG_CLASSES
|
|
|
|
|
+
|
|
|
|
|
+#define GENERAL_REGS GR_REGS
|
|
|
|
|
+
|
|
|
|
|
+/* An initializer containing the names of the register classes as C
|
|
|
|
|
+ string constants. These names are used in writing some of the
|
|
|
|
|
+ debugging dumps. */
|
|
|
|
|
+
|
|
|
|
|
+#define REG_CLASS_NAMES \
|
|
|
|
|
+{ \
|
|
|
|
|
+ "NO_REGS", \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "SIBCALL_REGS", \
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ "JALR_REGS", \
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "GR_REGS", \
|
|
|
|
|
+ "FP_REGS", \
|
|
|
|
|
+ "FRAME_REGS", \
|
|
|
|
|
+ "ALL_REGS" \
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* An initializer containing the contents of the register classes,
|
|
|
|
|
+ as integers which are bit masks. The Nth integer specifies the
|
|
|
|
|
+ contents of class N. The way the integer MASK is interpreted is
|
|
|
|
|
+ that register R is in the class if `MASK & (1 << R)' is 1.
|
|
|
|
|
+
|
|
|
|
|
+ When the machine has more than 32 registers, an integer does not
|
|
|
|
|
+ suffice. Then the integers are replaced by sub-initializers,
|
|
|
|
|
+ braced groupings containing several integers. Each
|
|
|
|
|
+ sub-initializer must be suitable as an initializer for the type
|
|
|
|
|
+ `HARD_REG_SET' which is defined in `hard-reg-set.h'. */
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define REG_CLASS_CONTENTS \
|
|
|
|
|
+{ \
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ { 0x00000000, 0x00000000, 0x00000000 }, /* NO_REGS */ \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ { 0xf00000c0, 0x00000000, 0x00000000 }, /* SIBCALL_REGS */ \
|
|
|
|
|
+ { 0xffffffc0, 0x00000000, 0x00000000 }, /* JALR_REGS */ \
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ { 0xffffffff, 0x00000000, 0x00000000 }, /* GR_REGS */ \
|
|
|
|
|
+ { 0x00000000, 0xffffffff, 0x00000000 }, /* FP_REGS */ \
|
|
|
|
|
+ { 0x00000000, 0x00000000, 0x00000003 }, /* FRAME_REGS */ \
|
|
|
|
|
+ { 0xffffffff, 0xffffffff, 0x00000003 } /* ALL_REGS */ \
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* A C expression whose value is a register class containing hard
|
|
|
|
|
+ register REGNO. In general there is more that one such class;
|
|
|
|
|
+ choose a class which is "minimal", meaning that no smaller class
|
|
|
|
|
+ also contains the register. */
|
|
|
|
|
+
|
|
|
|
|
+#define REGNO_REG_CLASS(REGNO) riscv_regno_to_class[ (REGNO) ]
|
|
|
|
|
+
|
|
|
|
|
+/* A macro whose definition is the name of the class to which a
|
|
|
|
|
+ valid base register must belong. A base register is one used in
|
|
|
|
|
+ an address which is the register value plus a displacement. */
|
|
|
|
|
+
|
|
|
|
|
+#define BASE_REG_CLASS GR_REGS
|
|
|
|
|
+
|
|
|
|
|
+/* A macro whose definition is the name of the class to which a
|
|
|
|
|
+ valid index register must belong. An index register is one used
|
|
|
|
|
+ in an address where its value is either multiplied by a scale
|
|
|
|
|
+ factor or added to another register (as well as added to a
|
|
|
|
|
+ displacement). */
|
|
|
|
|
+
|
|
|
|
|
+#define INDEX_REG_CLASS NO_REGS
|
|
|
|
|
+
|
|
|
|
|
+/* We generally want to put call-clobbered registers ahead of
|
|
|
|
|
+ call-saved ones. (IRA expects this.) */
|
|
|
|
|
+
|
|
|
|
|
+#define REG_ALLOC_ORDER \
|
|
|
|
|
+{ \
|
|
|
|
|
+ /* Call-clobbered GPRs. */ \
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ 15, 14, 13, 12, 11, 10, 16, 17, 6, 28, 29, 30, 31, 5, 7, 1, \
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ /* Call-saved GPRs. */ \
|
|
|
|
|
+ 8, 9, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, \
|
|
|
|
|
+ /* GPRs that can never be exposed to the register allocator. */ \
|
|
|
|
|
+ 0, 2, 3, 4, \
|
|
|
|
|
+ /* Call-clobbered FPRs. */ \
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ 47, 46, 45, 44, 43, 42, 32, 33, 34, 35, 36, 37, 38, 39, 48, 49, \
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ 60, 61, 62, 63, \
|
|
|
|
|
+ /* Call-saved FPRs. */ \
|
|
|
|
|
+ 40, 41, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, \
|
|
|
|
|
+ /* None of the remaining classes have defined call-saved \
|
|
|
|
|
+ registers. */ \
|
|
|
|
|
+ 64, 65 \
|
|
|
|
|
+}
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+/* True if VALUE is a signed 12-bit number. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+#define SMALL_OPERAND(VALUE) \
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ ((unsigned HOST_WIDE_INT) (VALUE) + IMM_REACH/2 < IMM_REACH)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+/* True if VALUE can be loaded into a register using LUI. */
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+#define LUI_OPERAND(VALUE) \
|
|
|
|
|
+ (((VALUE) | ((1UL<<31) - IMM_REACH)) == ((1UL<<31) - IMM_REACH) \
|
|
|
|
|
+ || ((VALUE) | ((1UL<<31) - IMM_REACH)) + IMM_REACH == 0)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+#define CANNOT_CHANGE_MODE_CLASS(FROM, TO, CLASS) \
|
|
|
|
|
+ reg_classes_intersect_p (FP_REGS, CLASS)
|
|
|
|
|
+
|
|
|
|
|
+/* Stack layout; function entry, exit and calling. */
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define STACK_GROWS_DOWNWARD 1
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+#define FRAME_GROWS_DOWNWARD 1
|
|
|
|
|
+
|
|
|
|
|
+#define STARTING_FRAME_OFFSET 0
|
|
|
|
|
+
|
|
|
|
|
+#define RETURN_ADDR_RTX riscv_return_addr
|
|
|
|
|
+
|
|
|
|
|
+#define ELIMINABLE_REGS \
|
|
|
|
|
+{{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
|
|
|
|
|
+ { ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}, \
|
|
|
|
|
+ { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
|
|
|
|
|
+ { FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}} \
|
|
|
|
|
+
|
|
|
|
|
+#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
|
|
|
|
|
+ (OFFSET) = riscv_initial_elimination_offset (FROM, TO)
|
|
|
|
|
+
|
|
|
|
|
+/* Allocate stack space for arguments at the beginning of each function. */
|
|
|
|
|
+#define ACCUMULATE_OUTGOING_ARGS 1
|
|
|
|
|
+
|
|
|
|
|
+/* The argument pointer always points to the first argument. */
|
|
|
|
|
+#define FIRST_PARM_OFFSET(FNDECL) 0
|
|
|
|
|
+
|
|
|
|
|
+#define REG_PARM_STACK_SPACE(FNDECL) 0
|
|
|
|
|
+
|
|
|
|
|
+/* Define this if it is the responsibility of the caller to
|
|
|
|
|
+ allocate the area reserved for arguments passed in registers.
|
|
|
|
|
+ If `ACCUMULATE_OUTGOING_ARGS' is also defined, the only effect
|
|
|
|
|
+ of this macro is to determine whether the space is included in
|
|
|
|
|
+ `crtl->outgoing_args_size'. */
|
|
|
|
|
+#define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 1
|
|
|
|
|
+
|
|
|
|
|
+#define STACK_BOUNDARY 128
|
|
|
|
|
+
|
|
|
|
|
+/* Symbolic macros for the registers used to return integer and floating
|
|
|
|
|
+ point values. */
|
|
|
|
|
+
|
|
|
|
|
+#define GP_RETURN GP_ARG_FIRST
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define FP_RETURN (UNITS_PER_FP_ARG == 0 ? GP_RETURN : FP_ARG_FIRST)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+#define MAX_ARGS_IN_REGISTERS 8
|
|
|
|
|
+
|
|
|
|
|
+/* Symbolic macros for the first/last argument registers. */
|
|
|
|
|
+
|
|
|
|
|
+#define GP_ARG_FIRST (GP_REG_FIRST + 10)
|
|
|
|
|
+#define GP_ARG_LAST (GP_ARG_FIRST + MAX_ARGS_IN_REGISTERS - 1)
|
|
|
|
|
+#define GP_TEMP_FIRST (GP_REG_FIRST + 5)
|
|
|
|
|
+#define FP_ARG_FIRST (FP_REG_FIRST + 10)
|
|
|
|
|
+#define FP_ARG_LAST (FP_ARG_FIRST + MAX_ARGS_IN_REGISTERS - 1)
|
|
|
|
|
+
|
|
|
|
|
+#define CALLEE_SAVED_REG_NUMBER(REGNO) \
|
|
|
|
|
+ ((REGNO) >= 8 && (REGNO) <= 9 ? (REGNO) - 8 : \
|
|
|
|
|
+ (REGNO) >= 18 && (REGNO) <= 27 ? (REGNO) - 16 : -1)
|
|
|
|
|
+
|
|
|
|
|
+#define LIBCALL_VALUE(MODE) \
|
|
|
|
|
+ riscv_function_value (NULL_TREE, NULL_TREE, MODE)
|
|
|
|
|
+
|
|
|
|
|
+#define FUNCTION_VALUE(VALTYPE, FUNC) \
|
|
|
|
|
+ riscv_function_value (VALTYPE, FUNC, VOIDmode)
|
|
|
|
|
+
|
|
|
|
|
+#define FUNCTION_VALUE_REGNO_P(N) ((N) == GP_RETURN || (N) == FP_RETURN)
|
|
|
|
|
+
|
|
|
|
|
+/* 1 if N is a possible register number for function argument passing.
|
|
|
|
|
+ We have no FP argument registers when soft-float. When FP registers
|
|
|
|
|
+ are 32 bits, we can't directly reference the odd numbered ones. */
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* Accept arguments in a0-a7, and in fa0-fa7 if permitted by the ABI. */
|
|
|
|
|
+#define FUNCTION_ARG_REGNO_P(N) \
|
|
|
|
|
+ (IN_RANGE ((N), GP_ARG_FIRST, GP_ARG_LAST) \
|
|
|
|
|
+ || (UNITS_PER_FP_ARG && IN_RANGE ((N), FP_ARG_FIRST, FP_ARG_LAST)))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+typedef struct {
|
|
|
|
|
+ /* Number of integer registers used so far, up to MAX_ARGS_IN_REGISTERS. */
|
|
|
|
|
+ unsigned int num_gprs;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ /* Number of floating-point registers used so far, likewise. */
|
|
|
|
|
+ unsigned int num_fprs;
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+} CUMULATIVE_ARGS;
|
|
|
|
|
+
|
|
|
|
|
+/* Initialize a variable CUM of type CUMULATIVE_ARGS
|
|
|
|
|
+ for a call to a function whose data type is FNTYPE.
|
|
|
|
|
+ For a library call, FNTYPE is 0. */
|
|
|
|
|
+
|
|
|
|
|
+#define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \
|
|
|
|
|
+ memset (&(CUM), 0, sizeof (CUM))
|
|
|
|
|
+
|
|
|
|
|
+#define EPILOGUE_USES(REGNO) ((REGNO) == RETURN_ADDR_REGNUM)
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* ABI requires 16-byte alignment, even on RV32. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+#define RISCV_STACK_ALIGN(LOC) (((LOC) + 15) & -16)
|
|
|
|
|
+
|
|
|
|
|
+/* EXIT_IGNORE_STACK should be nonzero if, when returning from a function,
|
|
|
|
|
+ the stack pointer does not matter. The value is tested only in
|
|
|
|
|
+ functions that have frame pointers.
|
|
|
|
|
+ No definition is equivalent to always zero. */
|
|
|
|
|
+
|
|
|
|
|
+#define EXIT_IGNORE_STACK 1
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+/* Trampolines are a block of code followed by two pointers. */
|
|
|
|
|
+
|
|
|
|
|
+#define TRAMPOLINE_CODE_SIZE 16
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define TRAMPOLINE_SIZE \
|
|
|
|
|
+ ((Pmode == SImode) \
|
|
|
|
|
+ ? TRAMPOLINE_CODE_SIZE \
|
|
|
|
|
+ : (TRAMPOLINE_CODE_SIZE + POINTER_SIZE * 2))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+#define TRAMPOLINE_ALIGNMENT POINTER_SIZE
|
|
|
|
|
+
|
|
|
|
|
+/* Addressing modes, and classification of registers for them. */
|
|
|
|
|
+
|
|
|
|
|
+#define REGNO_OK_FOR_INDEX_P(REGNO) 0
|
|
|
|
|
+#define REGNO_MODE_OK_FOR_BASE_P(REGNO, MODE) \
|
|
|
|
|
+ riscv_regno_mode_ok_for_base_p (REGNO, MODE, 1)
|
|
|
|
|
+
|
|
|
|
|
+/* The macros REG_OK_FOR..._P assume that the arg is a REG rtx
|
|
|
|
|
+ and check its validity for a certain class.
|
|
|
|
|
+ We have two alternate definitions for each of them.
|
|
|
|
|
+ The usual definition accepts all pseudo regs; the other rejects them all.
|
|
|
|
|
+ The symbol REG_OK_STRICT causes the latter definition to be used.
|
|
|
|
|
+
|
|
|
|
|
+ Most source files want to accept pseudo regs in the hope that
|
|
|
|
|
+ they will get allocated to the class that the insn wants them to be in.
|
|
|
|
|
+ Some source files that are used after register allocation
|
|
|
|
|
+ need to be strict. */
|
|
|
|
|
+
|
|
|
|
|
+#ifndef REG_OK_STRICT
|
|
|
|
|
+#define REG_MODE_OK_FOR_BASE_P(X, MODE) \
|
|
|
|
|
+ riscv_regno_mode_ok_for_base_p (REGNO (X), MODE, 0)
|
|
|
|
|
+#else
|
|
|
|
|
+#define REG_MODE_OK_FOR_BASE_P(X, MODE) \
|
|
|
|
|
+ riscv_regno_mode_ok_for_base_p (REGNO (X), MODE, 1)
|
|
|
|
|
+#endif
|
|
|
|
|
+
|
|
|
|
|
+#define REG_OK_FOR_INDEX_P(X) 0
|
|
|
|
|
+
|
|
|
|
|
+/* Maximum number of registers that can appear in a valid memory address. */
|
|
|
|
|
+
|
|
|
|
|
+#define MAX_REGS_PER_ADDRESS 1
|
|
|
|
|
+
|
|
|
|
|
+#define CONSTANT_ADDRESS_P(X) \
|
|
|
|
|
+ (CONSTANT_P (X) && memory_address_p (SImode, X))
|
|
|
|
|
+
|
|
|
|
|
+/* This handles the magic '..CURRENT_FUNCTION' symbol, which means
|
|
|
|
|
+ 'the start of the function that this code is output in'. */
|
|
|
|
|
+
|
|
|
|
|
+#define ASM_OUTPUT_LABELREF(FILE,NAME) \
|
|
|
|
|
+ if (strcmp (NAME, "..CURRENT_FUNCTION") == 0) \
|
|
|
|
|
+ asm_fprintf ((FILE), "%U%s", \
|
|
|
|
|
+ XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \
|
|
|
|
|
+ else \
|
|
|
|
|
+ asm_fprintf ((FILE), "%U%s", (NAME))
|
|
|
|
|
+
|
|
|
|
|
+#define JUMP_TABLES_IN_TEXT_SECTION 0
|
|
|
|
|
+#define CASE_VECTOR_MODE SImode
|
|
|
|
|
+#define CASE_VECTOR_PC_RELATIVE (riscv_cmodel != CM_MEDLOW)
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* The load-address macro is used for PC-relative addressing of symbols
|
|
|
|
|
+ that bind locally. Don't use it for symbols that should be addressed
|
|
|
|
|
+ via the GOT. Also, avoid it for CM_MEDLOW, where LUI addressing
|
|
|
|
|
+ currently results in more opportunities for linker relaxation. */
|
|
|
|
|
+#define USE_LOAD_ADDRESS_MACRO(sym) \
|
|
|
|
|
+ (!TARGET_EXPLICIT_RELOCS && \
|
|
|
|
|
+ ((flag_pic \
|
|
|
|
|
+ && ((SYMBOL_REF_P (sym) && SYMBOL_REF_LOCAL_P (sym)) \
|
|
|
|
|
+ || ((GET_CODE (sym) == CONST) \
|
|
|
|
|
+ && SYMBOL_REF_P (XEXP (XEXP (sym, 0),0)) \
|
|
|
|
|
+ && SYMBOL_REF_LOCAL_P (XEXP (XEXP (sym, 0),0))))) \
|
|
|
|
|
+ || riscv_cmodel == CM_MEDANY))
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+/* Define this as 1 if `char' should by default be signed; else as 0. */
|
|
|
|
|
+#define DEFAULT_SIGNED_CHAR 0
|
|
|
|
|
+
|
|
|
|
|
+#define MOVE_MAX UNITS_PER_WORD
|
|
|
|
|
+#define MAX_MOVE_MAX 8
|
|
|
|
|
+
|
|
|
|
|
+#define SLOW_BYTE_ACCESS 0
|
|
|
|
|
+
|
|
|
|
|
+#define SHIFT_COUNT_TRUNCATED 1
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+/* Specify the machine mode that pointers have.
|
|
|
|
|
+ After generation of rtl, the compiler makes no further distinction
|
|
|
|
|
+ between pointers and any other objects of this machine mode. */
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define Pmode word_mode
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+/* Give call MEMs SImode since it is the "most permissive" mode
|
|
|
|
|
+ for both 32-bit and 64-bit targets. */
|
|
|
|
|
+
|
|
|
|
|
+#define FUNCTION_MODE SImode
|
|
|
|
|
+
|
|
|
|
|
+/* A C expression for the cost of a branch instruction. A value of 2
|
|
|
|
|
+ seems to minimize code size. */
|
|
|
|
|
+
|
|
|
|
|
+#define BRANCH_COST(speed_p, predictable_p) \
|
|
|
|
|
+ ((!(speed_p) || (predictable_p)) ? 2 : riscv_branch_cost)
|
|
|
|
|
+
|
|
|
|
|
+#define LOGICAL_OP_NON_SHORT_CIRCUIT 0
|
|
|
|
|
+
|
|
|
|
|
+/* Control the assembler format that we output. */
|
|
|
|
|
+
|
|
|
|
|
+/* Output to assembler file text saying following lines
|
|
|
|
|
+ may contain character constants, extra white space, comments, etc. */
|
|
|
|
|
+
|
|
|
|
|
+#ifndef ASM_APP_ON
|
|
|
|
|
+#define ASM_APP_ON " #APP\n"
|
|
|
|
|
+#endif
|
|
|
|
|
+
|
|
|
|
|
+/* Output to assembler file text saying following lines
|
|
|
|
|
+ no longer contain unusual constructs. */
|
|
|
|
|
+
|
|
|
|
|
+#ifndef ASM_APP_OFF
|
|
|
|
|
+#define ASM_APP_OFF " #NO_APP\n"
|
|
|
|
|
+#endif
|
|
|
|
|
+
|
|
|
|
|
+#define REGISTER_NAMES \
|
|
|
|
|
+{ "zero","ra", "sp", "gp", "tp", "t0", "t1", "t2", \
|
|
|
|
|
+ "s0", "s1", "a0", "a1", "a2", "a3", "a4", "a5", \
|
|
|
|
|
+ "a6", "a7", "s2", "s3", "s4", "s5", "s6", "s7", \
|
|
|
|
|
+ "s8", "s9", "s10", "s11", "t3", "t4", "t5", "t6", \
|
|
|
|
|
+ "ft0", "ft1", "ft2", "ft3", "ft4", "ft5", "ft6", "ft7", \
|
|
|
|
|
+ "fs0", "fs1", "fa0", "fa1", "fa2", "fa3", "fa4", "fa5", \
|
|
|
|
|
+ "fa6", "fa7", "fs2", "fs3", "fs4", "fs5", "fs6", "fs7", \
|
|
|
|
|
+ "fs8", "fs9", "fs10","fs11","ft8", "ft9", "ft10","ft11", \
|
|
|
|
|
+ "arg", "frame", }
|
|
|
|
|
+
|
|
|
|
|
+#define ADDITIONAL_REGISTER_NAMES \
|
|
|
|
|
+{ \
|
|
|
|
|
+ { "x0", 0 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x1", 1 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x2", 2 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x3", 3 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x4", 4 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x5", 5 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x6", 6 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x7", 7 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x8", 8 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x9", 9 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x10", 10 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x11", 11 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x12", 12 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x13", 13 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x14", 14 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x15", 15 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x16", 16 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x17", 17 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x18", 18 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x19", 19 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x20", 20 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x21", 21 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x22", 22 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x23", 23 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x24", 24 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x25", 25 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x26", 26 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x27", 27 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x28", 28 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x29", 29 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x30", 30 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "x31", 31 + GP_REG_FIRST }, \
|
|
|
|
|
+ { "f0", 0 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f1", 1 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f2", 2 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f3", 3 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f4", 4 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f5", 5 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f6", 6 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f7", 7 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f8", 8 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f9", 9 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f10", 10 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f11", 11 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f12", 12 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f13", 13 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f14", 14 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f15", 15 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f16", 16 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f17", 17 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f18", 18 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f19", 19 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f20", 20 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f21", 21 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f22", 22 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f23", 23 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f24", 24 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f25", 25 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f26", 26 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f27", 27 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f28", 28 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f29", 29 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f30", 30 + FP_REG_FIRST }, \
|
|
|
|
|
+ { "f31", 31 + FP_REG_FIRST }, \
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Globalizing directive for a label. */
|
|
|
|
|
+#define GLOBAL_ASM_OP "\t.globl\t"
|
|
|
|
|
+
|
|
|
|
|
+/* This is how to store into the string LABEL
|
|
|
|
|
+ the symbol_ref name of an internal numbered label where
|
|
|
|
|
+ PREFIX is the class of label and NUM is the number within the class.
|
|
|
|
|
+ This is suitable for output with `assemble_name'. */
|
|
|
|
|
+
|
|
|
|
|
+#undef ASM_GENERATE_INTERNAL_LABEL
|
|
|
|
|
+#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
|
|
|
|
|
+ sprintf ((LABEL), "*%s%s%ld", (LOCAL_LABEL_PREFIX), (PREFIX), (long)(NUM))
|
|
|
|
|
+
|
|
|
|
|
+/* This is how to output an element of a case-vector that is absolute. */
|
|
|
|
|
+
|
|
|
|
|
+#define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \
|
|
|
|
|
+ fprintf (STREAM, "\t.word\t%sL%d\n", LOCAL_LABEL_PREFIX, VALUE)
|
|
|
|
|
+
|
|
|
|
|
+/* This is how to output an element of a PIC case-vector. */
|
|
|
|
|
+
|
|
|
|
|
+#define ASM_OUTPUT_ADDR_DIFF_ELT(STREAM, BODY, VALUE, REL) \
|
|
|
|
|
+ fprintf (STREAM, "\t.word\t%sL%d-%sL%d\n", \
|
|
|
|
|
+ LOCAL_LABEL_PREFIX, VALUE, LOCAL_LABEL_PREFIX, REL)
|
|
|
|
|
+
|
|
|
|
|
+/* This is how to output an assembler line
|
|
|
|
|
+ that says to advance the location counter
|
|
|
|
|
+ to a multiple of 2**LOG bytes. */
|
|
|
|
|
+
|
|
|
|
|
+#define ASM_OUTPUT_ALIGN(STREAM,LOG) \
|
|
|
|
|
+ fprintf (STREAM, "\t.align\t%d\n", (LOG))
|
|
|
|
|
+
|
|
|
|
|
+/* Define the strings to put out for each section in the object file. */
|
|
|
|
|
+#define TEXT_SECTION_ASM_OP "\t.text" /* instructions */
|
|
|
|
|
+#define DATA_SECTION_ASM_OP "\t.data" /* large data */
|
|
|
|
|
+#define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rodata"
|
|
|
|
|
+#define BSS_SECTION_ASM_OP "\t.bss"
|
|
|
|
|
+#define SBSS_SECTION_ASM_OP "\t.section\t.sbss,\"aw\",@nobits"
|
|
|
|
|
+#define SDATA_SECTION_ASM_OP "\t.section\t.sdata,\"aw\",@progbits"
|
|
|
|
|
+
|
|
|
|
|
+#define ASM_OUTPUT_REG_PUSH(STREAM,REGNO) \
|
|
|
|
|
+do \
|
|
|
|
|
+ { \
|
|
|
|
|
+ fprintf (STREAM, "\taddi\t%s,%s,-8\n\t%s\t%s,0(%s)\n", \
|
|
|
|
|
+ reg_names[STACK_POINTER_REGNUM], \
|
|
|
|
|
+ reg_names[STACK_POINTER_REGNUM], \
|
|
|
|
|
+ TARGET_64BIT ? "sd" : "sw", \
|
|
|
|
|
+ reg_names[REGNO], \
|
|
|
|
|
+ reg_names[STACK_POINTER_REGNUM]); \
|
|
|
|
|
+ } \
|
|
|
|
|
+while (0)
|
|
|
|
|
+
|
|
|
|
|
+#define ASM_OUTPUT_REG_POP(STREAM,REGNO) \
|
|
|
|
|
+do \
|
|
|
|
|
+ { \
|
|
|
|
|
+ fprintf (STREAM, "\t%s\t%s,0(%s)\n\taddi\t%s,%s,8\n", \
|
|
|
|
|
+ TARGET_64BIT ? "ld" : "lw", \
|
|
|
|
|
+ reg_names[REGNO], \
|
|
|
|
|
+ reg_names[STACK_POINTER_REGNUM], \
|
|
|
|
|
+ reg_names[STACK_POINTER_REGNUM], \
|
|
|
|
|
+ reg_names[STACK_POINTER_REGNUM]); \
|
|
|
|
|
+ } \
|
|
|
|
|
+while (0)
|
|
|
|
|
+
|
|
|
|
|
+#define ASM_COMMENT_START "#"
|
|
|
|
|
+
|
|
|
|
|
+#undef SIZE_TYPE
|
|
|
|
|
+#define SIZE_TYPE (POINTER_SIZE == 64 ? "long unsigned int" : "unsigned int")
|
|
|
|
|
+
|
|
|
|
|
+#undef PTRDIFF_TYPE
|
|
|
|
|
+#define PTRDIFF_TYPE (POINTER_SIZE == 64 ? "long int" : "int")
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+/* If a memory-to-memory move would take MOVE_RATIO or more simple
|
|
|
|
|
+ move-instruction pairs, we will do a movmem or libcall instead. */
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define MOVE_RATIO(speed) (CLEAR_RATIO (speed) / 2)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+/* For CLEAR_RATIO, when optimizing for size, give a better estimate
|
|
|
|
|
+ of the length of a memset call, but use the default otherwise. */
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define CLEAR_RATIO(speed) ((speed) ? 16 : 6)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+/* This is similar to CLEAR_RATIO, but for a non-zero constant, so when
|
|
|
|
|
+ optimizing for size adjust the ratio to account for the overhead of
|
|
|
|
|
+ loading the constant and replicating it across the word. */
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define SET_RATIO(speed) (CLEAR_RATIO (speed) - ((speed) ? 0 : 2))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+#ifndef USED_FOR_TARGET
|
|
|
|
|
+extern const enum reg_class riscv_regno_to_class[];
|
|
|
|
|
+extern bool riscv_hard_regno_mode_ok[][FIRST_PSEUDO_REGISTER];
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+#endif
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
|
|
|
|
|
+ (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4)
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define XLEN_SPEC \
|
|
|
|
|
+ "%{march=rv32*:32}" \
|
|
|
|
|
+ "%{march=rv64*:64}" \
|
|
|
|
|
+
|
|
|
|
|
+#define ABI_SPEC \
|
|
|
|
|
+ "%{mabi=ilp32:ilp32}" \
|
|
|
|
|
+ "%{mabi=ilp32f:ilp32f}" \
|
|
|
|
|
+ "%{mabi=ilp32d:ilp32d}" \
|
|
|
|
|
+ "%{mabi=lp64:lp64}" \
|
|
|
|
|
+ "%{mabi=lp64f:lp64f}" \
|
|
|
|
|
+ "%{mabi=lp64d:lp64d}" \
|
|
|
|
|
+
|
|
|
|
|
+#define STARTFILE_PREFIX_SPEC \
|
|
|
|
|
+ "/lib" XLEN_SPEC "/" ABI_SPEC "/ " \
|
|
|
|
|
+ "/usr/lib" XLEN_SPEC "/" ABI_SPEC "/ " \
|
|
|
|
|
+ "/lib/ " \
|
|
|
|
|
+ "/usr/lib/ "
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+/* ISA constants needed for code generation. */
|
|
|
|
|
+#define OPCODE_LW 0x2003
|
|
|
|
|
+#define OPCODE_LD 0x3003
|
|
|
|
|
+#define OPCODE_AUIPC 0x17
|
|
|
|
|
+#define OPCODE_JALR 0x67
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define OPCODE_LUI 0x37
|
|
|
|
|
+#define OPCODE_ADDI 0x13
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+#define SHIFT_RD 7
|
|
|
|
|
+#define SHIFT_RS1 15
|
|
|
|
|
+#define SHIFT_IMM 20
|
|
|
|
|
+#define IMM_BITS 12
|
|
|
|
|
+
|
|
|
|
|
+#define IMM_REACH (1LL << IMM_BITS)
|
|
|
|
|
+#define CONST_HIGH_PART(VALUE) (((VALUE) + (IMM_REACH/2)) & ~(IMM_REACH-1))
|
|
|
|
|
+#define CONST_LOW_PART(VALUE) ((VALUE) - CONST_HIGH_PART (VALUE))
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+
|
|
|
|
|
+#endif /* ! GCC_RISCV_H */
|
|
|
|
|
diff --git original-gcc/gcc/config/riscv/riscv.md gcc-6.3.0/gcc/config/riscv/riscv.md
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..4cbb2431335
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/riscv.md
|
|
|
|
|
@@ -0,0 +1,2079 @@
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+;; Machine description for RISC-V for GNU compiler.
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; Copyright (C) 2011-2017 Free Software Foundation, Inc.
|
|
|
|
|
+;; Contributed by Andrew Waterman (andrew@sifive.com).
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+;; Based on MIPS target for GNU compiler.
|
|
|
|
|
+
|
|
|
|
|
+;; This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+;; GCC is free software; you can redistribute it and/or modify
|
|
|
|
|
+;; it under the terms of the GNU General Public License as published by
|
|
|
|
|
+;; the Free Software Foundation; either version 3, or (at your option)
|
|
|
|
|
+;; any later version.
|
|
|
|
|
+
|
|
|
|
|
+;; GCC is distributed in the hope that it will be useful,
|
|
|
|
|
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
+;; GNU General Public License for more details.
|
|
|
|
|
+
|
|
|
|
|
+;; You should have received a copy of the GNU General Public License
|
|
|
|
|
+;; along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+;; <http://www.gnu.org/licenses/>.
|
|
|
|
|
+
|
|
|
|
|
+(define_c_enum "unspec" [
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ ;; Override return address for exception handling.
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ UNSPEC_EH_RETURN
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ ;; Symbolic accesses. The order of this list must match that of
|
|
|
|
|
+ ;; enum riscv_symbol_type in riscv-protos.h.
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ UNSPEC_ADDRESS_FIRST
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ UNSPEC_PCREL
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ UNSPEC_LOAD_GOT
|
|
|
|
|
+ UNSPEC_TLS
|
|
|
|
|
+ UNSPEC_TLS_LE
|
|
|
|
|
+ UNSPEC_TLS_IE
|
|
|
|
|
+ UNSPEC_TLS_GD
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ ;; High part of PC-relative address.
|
|
|
|
|
+ UNSPEC_AUIPC
|
|
|
|
|
+
|
|
|
|
|
+ ;; Floating-point unspecs.
|
|
|
|
|
+ UNSPEC_FLT_QUIET
|
|
|
|
|
+ UNSPEC_FLE_QUIET
|
|
|
|
|
+ UNSPEC_COPYSIGN
|
|
|
|
|
+ UNSPEC_LRINT
|
|
|
|
|
+ UNSPEC_LROUND
|
|
|
|
|
+
|
|
|
|
|
+ ;; Stack tie
|
|
|
|
|
+ UNSPEC_TIE
|
|
|
|
|
+])
|
|
|
|
|
+
|
|
|
|
|
+(define_c_enum "unspecv" [
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ;; Register save and restore.
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ UNSPECV_GPR_SAVE
|
|
|
|
|
+ UNSPECV_GPR_RESTORE
|
|
|
|
|
+
|
|
|
|
|
+ ;; Floating-point unspecs.
|
|
|
|
|
+ UNSPECV_FRFLAGS
|
|
|
|
|
+ UNSPECV_FSFLAGS
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ ;; Blockage and synchronization.
|
|
|
|
|
+ UNSPECV_BLOCKAGE
|
|
|
|
|
+ UNSPECV_FENCE
|
|
|
|
|
+ UNSPECV_FENCE_I
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+])
|
|
|
|
|
+
|
|
|
|
|
+(define_constants
|
|
|
|
|
+ [(RETURN_ADDR_REGNUM 1)
|
|
|
|
|
+ (T0_REGNUM 5)
|
|
|
|
|
+ (T1_REGNUM 6)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (S0_REGNUM 8)
|
|
|
|
|
+ (S1_REGNUM 9)
|
|
|
|
|
+ (S2_REGNUM 18)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+])
|
|
|
|
|
+
|
|
|
|
|
+(include "predicates.md")
|
|
|
|
|
+(include "constraints.md")
|
|
|
|
|
+
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+;; Attributes
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+
|
|
|
|
|
+(define_attr "got" "unset,xgot_high,load"
|
|
|
|
|
+ (const_string "unset"))
|
|
|
|
|
+
|
|
|
|
|
+;; Classification of moves, extensions and truncations. Most values
|
|
|
|
|
+;; are as for "type" (see below) but there are also the following
|
|
|
|
|
+;; move-specific values:
|
|
|
|
|
+;;
|
|
|
|
|
+;; andi a single ANDI instruction
|
|
|
|
|
+;; shift_shift a shift left followed by a shift right
|
|
|
|
|
+;;
|
|
|
|
|
+;; This attribute is used to determine the instruction's length and
|
|
|
|
|
+;; scheduling type. For doubleword moves, the attribute always describes
|
|
|
|
|
+;; the split instructions; in some cases, it is more appropriate for the
|
|
|
|
|
+;; scheduling type to be "multi" instead.
|
|
|
|
|
+(define_attr "move_type"
|
|
|
|
|
+ "unknown,load,fpload,store,fpstore,mtc,mfc,move,fmove,
|
|
|
|
|
+ const,logical,arith,andi,shift_shift"
|
|
|
|
|
+ (const_string "unknown"))
|
|
|
|
|
+
|
|
|
|
|
+;; Main data type used by the insn
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_attr "mode" "unknown,none,QI,HI,SI,DI,TI,SF,DF,TF"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (const_string "unknown"))
|
|
|
|
|
+
|
|
|
|
|
+;; True if the main data type is twice the size of a word.
|
|
|
|
|
+(define_attr "dword_mode" "no,yes"
|
|
|
|
|
+ (cond [(and (eq_attr "mode" "DI,DF")
|
|
|
|
|
+ (eq (symbol_ref "TARGET_64BIT") (const_int 0)))
|
|
|
|
|
+ (const_string "yes")
|
|
|
|
|
+
|
|
|
|
|
+ (and (eq_attr "mode" "TI,TF")
|
|
|
|
|
+ (ne (symbol_ref "TARGET_64BIT") (const_int 0)))
|
|
|
|
|
+ (const_string "yes")]
|
|
|
|
|
+ (const_string "no")))
|
|
|
|
|
+
|
|
|
|
|
+;; Classification of each insn.
|
|
|
|
|
+;; branch conditional branch
|
|
|
|
|
+;; jump unconditional jump
|
|
|
|
|
+;; call unconditional call
|
|
|
|
|
+;; load load instruction(s)
|
|
|
|
|
+;; fpload floating point load
|
|
|
|
|
+;; store store instruction(s)
|
|
|
|
|
+;; fpstore floating point store
|
|
|
|
|
+;; mtc transfer to coprocessor
|
|
|
|
|
+;; mfc transfer from coprocessor
|
|
|
|
|
+;; const load constant
|
|
|
|
|
+;; arith integer arithmetic instructions
|
|
|
|
|
+;; logical integer logical instructions
|
|
|
|
|
+;; shift integer shift instructions
|
|
|
|
|
+;; slt set less than instructions
|
|
|
|
|
+;; imul integer multiply
|
|
|
|
|
+;; idiv integer divide
|
|
|
|
|
+;; move integer register move (addi rd, rs1, 0)
|
|
|
|
|
+;; fmove floating point register move
|
|
|
|
|
+;; fadd floating point add/subtract
|
|
|
|
|
+;; fmul floating point multiply
|
|
|
|
|
+;; fmadd floating point multiply-add
|
|
|
|
|
+;; fdiv floating point divide
|
|
|
|
|
+;; fcmp floating point compare
|
|
|
|
|
+;; fcvt floating point convert
|
|
|
|
|
+;; fsqrt floating point square root
|
|
|
|
|
+;; multi multiword sequence (or user asm statements)
|
|
|
|
|
+;; nop no operation
|
|
|
|
|
+;; ghost an instruction that produces no real code
|
|
|
|
|
+(define_attr "type"
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ "unknown,branch,jump,call,load,fpload,store,fpstore,
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ mtc,mfc,const,arith,logical,shift,slt,imul,idiv,move,fmove,fadd,fmul,
|
|
|
|
|
+ fmadd,fdiv,fcmp,fcvt,fsqrt,multi,nop,ghost"
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ (cond [(eq_attr "got" "load") (const_string "load")
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ ;; If a doubleword move uses these expensive instructions,
|
|
|
|
|
+ ;; it is usually better to schedule them in the same way
|
|
|
|
|
+ ;; as the singleword form, rather than as "multi".
|
|
|
|
|
+ (eq_attr "move_type" "load") (const_string "load")
|
|
|
|
|
+ (eq_attr "move_type" "fpload") (const_string "fpload")
|
|
|
|
|
+ (eq_attr "move_type" "store") (const_string "store")
|
|
|
|
|
+ (eq_attr "move_type" "fpstore") (const_string "fpstore")
|
|
|
|
|
+ (eq_attr "move_type" "mtc") (const_string "mtc")
|
|
|
|
|
+ (eq_attr "move_type" "mfc") (const_string "mfc")
|
|
|
|
|
+
|
|
|
|
|
+ ;; These types of move are always single insns.
|
|
|
|
|
+ (eq_attr "move_type" "fmove") (const_string "fmove")
|
|
|
|
|
+ (eq_attr "move_type" "arith") (const_string "arith")
|
|
|
|
|
+ (eq_attr "move_type" "logical") (const_string "logical")
|
|
|
|
|
+ (eq_attr "move_type" "andi") (const_string "logical")
|
|
|
|
|
+
|
|
|
|
|
+ ;; These types of move are always split.
|
|
|
|
|
+ (eq_attr "move_type" "shift_shift")
|
|
|
|
|
+ (const_string "multi")
|
|
|
|
|
+
|
|
|
|
|
+ ;; These types of move are split for doubleword modes only.
|
|
|
|
|
+ (and (eq_attr "move_type" "move,const")
|
|
|
|
|
+ (eq_attr "dword_mode" "yes"))
|
|
|
|
|
+ (const_string "multi")
|
|
|
|
|
+ (eq_attr "move_type" "move") (const_string "move")
|
|
|
|
|
+ (eq_attr "move_type" "const") (const_string "const")]
|
|
|
|
|
+ (const_string "unknown")))
|
|
|
|
|
+
|
|
|
|
|
+;; Length of instruction in bytes.
|
|
|
|
|
+(define_attr "length" ""
|
|
|
|
|
+ (cond [
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ ;; Branches further than +/- 4 KiB require two instructions.
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (eq_attr "type" "branch")
|
|
|
|
|
+ (if_then_else (and (le (minus (match_dup 0) (pc)) (const_int 4088))
|
|
|
|
|
+ (le (minus (pc) (match_dup 0)) (const_int 4092)))
|
|
|
|
|
+ (const_int 4)
|
|
|
|
|
+ (const_int 8))
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ ;; Conservatively assume calls take two instructions (AUIPC + JALR).
|
|
|
|
|
+ ;; The linker will opportunistically relax the sequence to JAL.
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ (eq_attr "type" "call") (const_int 8)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ ;; "Ghost" instructions occupy no space.
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ (eq_attr "type" "ghost") (const_int 0)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ (eq_attr "got" "load") (const_int 8)
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ (eq_attr "type" "fcmp") (const_int 8)
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ;; SHIFT_SHIFTs are decomposed into two separate instructions.
|
|
|
|
|
+ (eq_attr "move_type" "shift_shift")
|
|
|
|
|
+ (const_int 8)
|
|
|
|
|
+
|
|
|
|
|
+ ;; Check for doubleword moves that are decomposed into two
|
|
|
|
|
+ ;; instructions.
|
|
|
|
|
+ (and (eq_attr "move_type" "mtc,mfc,move")
|
|
|
|
|
+ (eq_attr "dword_mode" "yes"))
|
|
|
|
|
+ (const_int 8)
|
|
|
|
|
+
|
|
|
|
|
+ ;; Doubleword CONST{,N} moves are split into two word
|
|
|
|
|
+ ;; CONST{,N} moves.
|
|
|
|
|
+ (and (eq_attr "move_type" "const")
|
|
|
|
|
+ (eq_attr "dword_mode" "yes"))
|
|
|
|
|
+ (symbol_ref "riscv_split_const_insns (operands[1]) * 4")
|
|
|
|
|
+
|
|
|
|
|
+ ;; Otherwise, constants, loads and stores are handled by external
|
|
|
|
|
+ ;; routines.
|
|
|
|
|
+ (eq_attr "move_type" "load,fpload")
|
|
|
|
|
+ (symbol_ref "riscv_load_store_insns (operands[1], insn) * 4")
|
|
|
|
|
+ (eq_attr "move_type" "store,fpstore")
|
|
|
|
|
+ (symbol_ref "riscv_load_store_insns (operands[0], insn) * 4")
|
|
|
|
|
+ ] (const_int 4)))
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; Is copying of this instruction disallowed?
|
|
|
|
|
+(define_attr "cannot_copy" "no,yes" (const_string "no"))
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+;; Describe a user's asm statement.
|
|
|
|
|
+(define_asm_attributes
|
|
|
|
|
+ [(set_attr "type" "multi")])
|
|
|
|
|
+
|
|
|
|
|
+;; This mode iterator allows 32-bit and 64-bit GPR patterns to be generated
|
|
|
|
|
+;; from the same template.
|
|
|
|
|
+(define_mode_iterator GPR [SI (DI "TARGET_64BIT")])
|
|
|
|
|
+
|
|
|
|
|
+;; This mode iterator allows :P to be used for patterns that operate on
|
|
|
|
|
+;; pointer-sized quantities. Exactly one of the two alternatives will match.
|
|
|
|
|
+(define_mode_iterator P [(SI "Pmode == SImode") (DI "Pmode == DImode")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; Likewise, but for XLEN-sized quantities.
|
|
|
|
|
+(define_mode_iterator X [(SI "!TARGET_64BIT") (DI "TARGET_64BIT")])
|
|
|
|
|
+
|
|
|
|
|
+;; Branches operate on XLEN-sized quantities, but for RV64 we accept
|
|
|
|
|
+;; QImode values so we can force zero-extension.
|
|
|
|
|
+(define_mode_iterator BR [(QI "TARGET_64BIT") SI (DI "TARGET_64BIT")])
|
|
|
|
|
+
|
|
|
|
|
+;; 32-bit moves for which we provide move patterns.
|
|
|
|
|
+(define_mode_iterator MOVE32 [SI])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+;; 64-bit modes for which we provide move patterns.
|
|
|
|
|
+(define_mode_iterator MOVE64 [DI DF])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; Iterator for sub-32-bit integer modes.
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+(define_mode_iterator SHORT [QI HI])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; Iterator for HImode constant generation.
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+(define_mode_iterator HISI [HI SI])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; Iterator for QImode extension patterns.
|
|
|
|
|
+(define_mode_iterator SUPERQI [HI SI (DI "TARGET_64BIT")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; Iterator for hardware integer modes narrower than XLEN.
|
|
|
|
|
+(define_mode_iterator SUBX [QI HI (SI "TARGET_64BIT")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; Iterator for hardware-supported integer modes.
|
|
|
|
|
+(define_mode_iterator ANYI [QI HI SI (DI "TARGET_64BIT")])
|
|
|
|
|
+
|
|
|
|
|
+;; Iterator for hardware-supported floating-point modes.
|
|
|
|
|
+(define_mode_iterator ANYF [(SF "TARGET_HARD_FLOAT")
|
|
|
|
|
+ (DF "TARGET_DOUBLE_FLOAT")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+;; This attribute gives the length suffix for a sign- or zero-extension
|
|
|
|
|
+;; instruction.
|
|
|
|
|
+(define_mode_attr size [(QI "b") (HI "h")])
|
|
|
|
|
+
|
|
|
|
|
+;; Mode attributes for loads.
|
|
|
|
|
+(define_mode_attr load [(QI "lb") (HI "lh") (SI "lw") (DI "ld") (SF "flw") (DF "fld")])
|
|
|
|
|
+
|
|
|
|
|
+;; Instruction names for stores.
|
|
|
|
|
+(define_mode_attr store [(QI "sb") (HI "sh") (SI "sw") (DI "sd") (SF "fsw") (DF "fsd")])
|
|
|
|
|
+
|
|
|
|
|
+;; This attribute gives the best constraint to use for registers of
|
|
|
|
|
+;; a given mode.
|
|
|
|
|
+(define_mode_attr reg [(SI "d") (DI "d") (CC "d")])
|
|
|
|
|
+
|
|
|
|
|
+;; This attribute gives the format suffix for floating-point operations.
|
|
|
|
|
+(define_mode_attr fmt [(SF "s") (DF "d")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; This attribute gives the integer suffix for floating-point conversions.
|
|
|
|
|
+(define_mode_attr ifmt [(SI "w") (DI "l")])
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+;; This attribute gives the format suffix for atomic memory operations.
|
|
|
|
|
+(define_mode_attr amo [(SI "w") (DI "d")])
|
|
|
|
|
+
|
|
|
|
|
+;; This attribute gives the upper-case mode name for one unit of a
|
|
|
|
|
+;; floating-point mode.
|
|
|
|
|
+(define_mode_attr UNITMODE [(SF "SF") (DF "DF")])
|
|
|
|
|
+
|
|
|
|
|
+;; This attribute gives the integer mode that has half the size of
|
|
|
|
|
+;; the controlling mode.
|
|
|
|
|
+(define_mode_attr HALFMODE [(DF "SI") (DI "SI") (TF "DI")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; Iterator and attributes for floating-point rounding instructions.
|
|
|
|
|
+(define_int_iterator RINT [UNSPEC_LRINT UNSPEC_LROUND])
|
|
|
|
|
+(define_int_attr rint_pattern [(UNSPEC_LRINT "rint") (UNSPEC_LROUND "round")])
|
|
|
|
|
+(define_int_attr rint_rm [(UNSPEC_LRINT "dyn") (UNSPEC_LROUND "rmm")])
|
|
|
|
|
+
|
|
|
|
|
+;; Iterator and attributes for quiet comparisons.
|
|
|
|
|
+(define_int_iterator QUIET_COMPARISON [UNSPEC_FLT_QUIET UNSPEC_FLE_QUIET])
|
|
|
|
|
+(define_int_attr quiet_pattern [(UNSPEC_FLT_QUIET "lt") (UNSPEC_FLE_QUIET "le")])
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+;; This code iterator allows signed and unsigned widening multiplications
|
|
|
|
|
+;; to use the same template.
|
|
|
|
|
+(define_code_iterator any_extend [sign_extend zero_extend])
|
|
|
|
|
+
|
|
|
|
|
+;; This code iterator allows the two right shift instructions to be
|
|
|
|
|
+;; generated from the same template.
|
|
|
|
|
+(define_code_iterator any_shiftrt [ashiftrt lshiftrt])
|
|
|
|
|
+
|
|
|
|
|
+;; This code iterator allows the three shift instructions to be generated
|
|
|
|
|
+;; from the same template.
|
|
|
|
|
+(define_code_iterator any_shift [ashift ashiftrt lshiftrt])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; This code iterator allows the three bitwise instructions to be generated
|
|
|
|
|
+;; from the same template.
|
|
|
|
|
+(define_code_iterator any_bitwise [and ior xor])
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+;; This code iterator allows unsigned and signed division to be generated
|
|
|
|
|
+;; from the same template.
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_code_iterator any_div [div udiv mod umod])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+;; This code iterator allows unsigned and signed modulus to be generated
|
|
|
|
|
+;; from the same template.
|
|
|
|
|
+(define_code_iterator any_mod [mod umod])
|
|
|
|
|
+
|
|
|
|
|
+;; These code iterators allow the signed and unsigned scc operations to use
|
|
|
|
|
+;; the same template.
|
|
|
|
|
+(define_code_iterator any_gt [gt gtu])
|
|
|
|
|
+(define_code_iterator any_ge [ge geu])
|
|
|
|
|
+(define_code_iterator any_lt [lt ltu])
|
|
|
|
|
+(define_code_iterator any_le [le leu])
|
|
|
|
|
+
|
|
|
|
|
+;; <u> expands to an empty string when doing a signed operation and
|
|
|
|
|
+;; "u" when doing an unsigned operation.
|
|
|
|
|
+(define_code_attr u [(sign_extend "") (zero_extend "u")
|
|
|
|
|
+ (gt "") (gtu "u")
|
|
|
|
|
+ (ge "") (geu "u")
|
|
|
|
|
+ (lt "") (ltu "u")
|
|
|
|
|
+ (le "") (leu "u")])
|
|
|
|
|
+
|
|
|
|
|
+;; <su> is like <u>, but the signed form expands to "s" rather than "".
|
|
|
|
|
+(define_code_attr su [(sign_extend "s") (zero_extend "u")])
|
|
|
|
|
+
|
|
|
|
|
+;; <optab> expands to the name of the optab for a particular code.
|
|
|
|
|
+(define_code_attr optab [(ashift "ashl")
|
|
|
|
|
+ (ashiftrt "ashr")
|
|
|
|
|
+ (lshiftrt "lshr")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (div "div")
|
|
|
|
|
+ (mod "mod")
|
|
|
|
|
+ (udiv "udiv")
|
|
|
|
|
+ (umod "umod")
|
|
|
|
|
+ (ge "ge")
|
|
|
|
|
+ (le "le")
|
|
|
|
|
+ (gt "gt")
|
|
|
|
|
+ (lt "lt")
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (ior "ior")
|
|
|
|
|
+ (xor "xor")
|
|
|
|
|
+ (and "and")
|
|
|
|
|
+ (plus "add")
|
|
|
|
|
+ (minus "sub")])
|
|
|
|
|
+
|
|
|
|
|
+;; <insn> expands to the name of the insn that implements a particular code.
|
|
|
|
|
+(define_code_attr insn [(ashift "sll")
|
|
|
|
|
+ (ashiftrt "sra")
|
|
|
|
|
+ (lshiftrt "srl")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (div "div")
|
|
|
|
|
+ (mod "rem")
|
|
|
|
|
+ (udiv "divu")
|
|
|
|
|
+ (umod "remu")
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (ior "or")
|
|
|
|
|
+ (xor "xor")
|
|
|
|
|
+ (and "and")
|
|
|
|
|
+ (plus "add")
|
|
|
|
|
+ (minus "sub")])
|
|
|
|
|
+
|
|
|
|
|
+;; Ghost instructions produce no real code and introduce no hazards.
|
|
|
|
|
+;; They exist purely to express an effect on dataflow.
|
|
|
|
|
+(define_insn_reservation "ghost" 0
|
|
|
|
|
+ (eq_attr "type" "ghost")
|
|
|
|
|
+ "nothing")
|
|
|
|
|
+
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+;; ADDITION
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "add<mode>3"
|
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
|
|
|
|
+ (plus:ANYF (match_operand:ANYF 1 "register_operand" "f")
|
|
|
|
|
+ (match_operand:ANYF 2 "register_operand" "f")))]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "fadd.<fmt>\t%0,%1,%2"
|
|
|
|
|
+ [(set_attr "type" "fadd")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "addsi3"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (match_operand:SI 0 "register_operand" "=r,r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (plus:SI (match_operand:SI 1 "register_operand" "r,r")
|
|
|
|
|
+ (match_operand:SI 2 "arith_operand" "r,I")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
|
|
|
|
+ { return TARGET_64BIT ? "addw\t%0,%1,%2" : "add\t%0,%1,%2"; }
|
|
|
|
|
+ [(set_attr "type" "arith")
|
|
|
|
|
+ (set_attr "mode" "SI")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "adddi3"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand" "=r,r")
|
|
|
|
|
+ (plus:DI (match_operand:DI 1 "register_operand" "r,r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (match_operand:DI 2 "arith_operand" "r,I")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "TARGET_64BIT"
|
|
|
|
|
+ "add\t%0,%1,%2"
|
|
|
|
|
+ [(set_attr "type" "arith")
|
|
|
|
|
+ (set_attr "mode" "DI")])
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "*addsi3_extended"
|
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand" "=r,r")
|
|
|
|
|
+ (sign_extend:DI
|
|
|
|
|
+ (plus:SI (match_operand:SI 1 "register_operand" "r,r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (match_operand:SI 2 "arith_operand" "r,I"))))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "TARGET_64BIT"
|
|
|
|
|
+ "addw\t%0,%1,%2"
|
|
|
|
|
+ [(set_attr "type" "arith")
|
|
|
|
|
+ (set_attr "mode" "SI")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "*addsi3_extended2"
|
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand" "=r,r")
|
|
|
|
|
+ (sign_extend:DI
|
|
|
|
|
+ (subreg:SI (plus:DI (match_operand:DI 1 "register_operand" "r,r")
|
|
|
|
|
+ (match_operand:DI 2 "arith_operand" "r,I"))
|
|
|
|
|
+ 0)))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "TARGET_64BIT"
|
|
|
|
|
+ "addw\t%0,%1,%2"
|
|
|
|
|
+ [(set_attr "type" "arith")
|
|
|
|
|
+ (set_attr "mode" "SI")])
|
|
|
|
|
+
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+;; SUBTRACTION
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "sub<mode>3"
|
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
|
|
|
|
+ (minus:ANYF (match_operand:ANYF 1 "register_operand" "f")
|
|
|
|
|
+ (match_operand:ANYF 2 "register_operand" "f")))]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "fsub.<fmt>\t%0,%1,%2"
|
|
|
|
|
+ [(set_attr "type" "fadd")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "subdi3"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand" "=r")
|
|
|
|
|
+ (minus:DI (match_operand:DI 1 "reg_or_0_operand" "rJ")
|
|
|
|
|
+ (match_operand:DI 2 "register_operand" "r")))]
|
|
|
|
|
+ "TARGET_64BIT"
|
|
|
|
|
+ "sub\t%0,%z1,%2"
|
|
|
|
|
+ [(set_attr "type" "arith")
|
|
|
|
|
+ (set_attr "mode" "DI")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "subsi3"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (match_operand:SI 0 "register_operand" "=r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (minus:SI (match_operand:SI 1 "reg_or_0_operand" "rJ")
|
|
|
|
|
+ (match_operand:SI 2 "register_operand" "r")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
|
|
|
|
+ { return TARGET_64BIT ? "subw\t%0,%z1,%2" : "sub\t%0,%z1,%2"; }
|
|
|
|
|
+ [(set_attr "type" "arith")
|
|
|
|
|
+ (set_attr "mode" "SI")])
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "*subsi3_extended"
|
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand" "=r")
|
|
|
|
|
+ (sign_extend:DI
|
|
|
|
|
+ (minus:SI (match_operand:SI 1 "reg_or_0_operand" "rJ")
|
|
|
|
|
+ (match_operand:SI 2 "register_operand" "r"))))]
|
|
|
|
|
+ "TARGET_64BIT"
|
|
|
|
|
+ "subw\t%0,%z1,%2"
|
|
|
|
|
+ [(set_attr "type" "arith")
|
|
|
|
|
+ (set_attr "mode" "SI")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "*subsi3_extended2"
|
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand" "=r")
|
|
|
|
|
+ (sign_extend:DI
|
|
|
|
|
+ (subreg:SI (minus:DI (match_operand:DI 1 "reg_or_0_operand" "r")
|
|
|
|
|
+ (match_operand:DI 2 "register_operand" "r"))
|
|
|
|
|
+ 0)))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "TARGET_64BIT"
|
|
|
|
|
+ "subw\t%0,%z1,%2"
|
|
|
|
|
+ [(set_attr "type" "arith")
|
|
|
|
|
+ (set_attr "mode" "SI")])
|
|
|
|
|
+
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+;; MULTIPLICATION
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "mul<mode>3"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
|
|
|
|
+ (mult:ANYF (match_operand:ANYF 1 "register_operand" "f")
|
|
|
|
|
+ (match_operand:ANYF 2 "register_operand" "f")))]
|
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "fmul.<fmt>\t%0,%1,%2"
|
|
|
|
|
+ [(set_attr "type" "fmul")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "mulsi3"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (match_operand:SI 0 "register_operand" "=r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (mult:SI (match_operand:SI 1 "register_operand" "r")
|
|
|
|
|
+ (match_operand:SI 2 "register_operand" "r")))]
|
|
|
|
|
+ "TARGET_MUL"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ { return TARGET_64BIT ? "mulw\t%0,%1,%2" : "mul\t%0,%1,%2"; }
|
|
|
|
|
+ [(set_attr "type" "imul")
|
|
|
|
|
+ (set_attr "mode" "SI")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "muldi3"
|
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand" "=r")
|
|
|
|
|
+ (mult:DI (match_operand:DI 1 "register_operand" "r")
|
|
|
|
|
+ (match_operand:DI 2 "register_operand" "r")))]
|
|
|
|
|
+ "TARGET_MUL && TARGET_64BIT"
|
|
|
|
|
+ "mul\t%0,%1,%2"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set_attr "type" "imul")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (set_attr "mode" "DI")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "*mulsi3_extended"
|
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand" "=r")
|
|
|
|
|
+ (sign_extend:DI
|
|
|
|
|
+ (mult:SI (match_operand:SI 1 "register_operand" "r")
|
|
|
|
|
+ (match_operand:SI 2 "register_operand" "r"))))]
|
|
|
|
|
+ "TARGET_MUL && TARGET_64BIT"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "mulw\t%0,%1,%2"
|
|
|
|
|
+ [(set_attr "type" "imul")
|
|
|
|
|
+ (set_attr "mode" "SI")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "*mulsi3_extended2"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand" "=r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (sign_extend:DI
|
|
|
|
|
+ (subreg:SI (mult:DI (match_operand:DI 1 "register_operand" "r")
|
|
|
|
|
+ (match_operand:DI 2 "register_operand" "r"))
|
|
|
|
|
+ 0)))]
|
|
|
|
|
+ "TARGET_MUL && TARGET_64BIT"
|
|
|
|
|
+ "mulw\t%0,%1,%2"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set_attr "type" "imul")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (set_attr "mode" "SI")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+;;
|
|
|
|
|
+;; ........................
|
|
|
|
|
+;;
|
|
|
|
|
+;; MULTIPLICATION HIGH-PART
|
|
|
|
|
+;;
|
|
|
|
|
+;; ........................
|
|
|
|
|
+;;
|
|
|
|
|
+
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_expand "<u>mulditi3"
|
|
|
|
|
+ [(set (match_operand:TI 0 "register_operand")
|
|
|
|
|
+ (mult:TI (any_extend:TI (match_operand:DI 1 "register_operand"))
|
|
|
|
|
+ (any_extend:TI (match_operand:DI 2 "register_operand"))))]
|
|
|
|
|
+ "TARGET_MUL && TARGET_64BIT"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ rtx low = gen_reg_rtx (DImode);
|
|
|
|
|
+ emit_insn (gen_muldi3 (low, operands[1], operands[2]));
|
|
|
|
|
+
|
|
|
|
|
+ rtx high = gen_reg_rtx (DImode);
|
|
|
|
|
+ emit_insn (gen_<u>muldi3_highpart (high, operands[1], operands[2]));
|
|
|
|
|
+
|
|
|
|
|
+ emit_move_insn (gen_lowpart (DImode, operands[0]), low);
|
|
|
|
|
+ emit_move_insn (gen_highpart (DImode, operands[0]), high);
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+(define_insn "<u>muldi3_highpart"
|
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand" "=r")
|
|
|
|
|
+ (truncate:DI
|
|
|
|
|
+ (lshiftrt:TI
|
|
|
|
|
+ (mult:TI (any_extend:TI
|
|
|
|
|
+ (match_operand:DI 1 "register_operand" "r"))
|
|
|
|
|
+ (any_extend:TI
|
|
|
|
|
+ (match_operand:DI 2 "register_operand" "r")))
|
|
|
|
|
+ (const_int 64))))]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "TARGET_MUL && TARGET_64BIT"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "mulh<u>\t%0,%1,%2"
|
|
|
|
|
+ [(set_attr "type" "imul")
|
|
|
|
|
+ (set_attr "mode" "DI")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_expand "usmulditi3"
|
|
|
|
|
+ [(set (match_operand:TI 0 "register_operand")
|
|
|
|
|
+ (mult:TI (zero_extend:TI (match_operand:DI 1 "register_operand"))
|
|
|
|
|
+ (sign_extend:TI (match_operand:DI 2 "register_operand"))))]
|
|
|
|
|
+ "TARGET_MUL && TARGET_64BIT"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ rtx low = gen_reg_rtx (DImode);
|
|
|
|
|
+ emit_insn (gen_muldi3 (low, operands[1], operands[2]));
|
|
|
|
|
+
|
|
|
|
|
+ rtx high = gen_reg_rtx (DImode);
|
|
|
|
|
+ emit_insn (gen_usmuldi3_highpart (high, operands[1], operands[2]));
|
|
|
|
|
+
|
|
|
|
|
+ emit_move_insn (gen_lowpart (DImode, operands[0]), low);
|
|
|
|
|
+ emit_move_insn (gen_highpart (DImode, operands[0]), high);
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+(define_insn "usmuldi3_highpart"
|
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand" "=r")
|
|
|
|
|
+ (truncate:DI
|
|
|
|
|
+ (lshiftrt:TI
|
|
|
|
|
+ (mult:TI (zero_extend:TI
|
|
|
|
|
+ (match_operand:DI 1 "register_operand" "r"))
|
|
|
|
|
+ (sign_extend:TI
|
|
|
|
|
+ (match_operand:DI 2 "register_operand" "r")))
|
|
|
|
|
+ (const_int 64))))]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "TARGET_MUL && TARGET_64BIT"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "mulhsu\t%0,%2,%1"
|
|
|
|
|
+ [(set_attr "type" "imul")
|
|
|
|
|
+ (set_attr "mode" "DI")])
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "<u>mulsidi3"
|
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand" "=r")
|
|
|
|
|
+ (mult:DI (any_extend:DI
|
|
|
|
|
+ (match_operand:SI 1 "register_operand" "r"))
|
|
|
|
|
+ (any_extend:DI
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (match_operand:SI 2 "register_operand" "r"))))]
|
|
|
|
|
+ "TARGET_MUL && !TARGET_64BIT"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
|
|
|
|
+ rtx temp = gen_reg_rtx (SImode);
|
|
|
|
|
+ emit_insn (gen_mulsi3 (temp, operands[1], operands[2]));
|
|
|
|
|
+ emit_insn (gen_<u>mulsi3_highpart (riscv_subword (operands[0], true),
|
|
|
|
|
+ operands[1], operands[2]));
|
|
|
|
|
+ emit_insn (gen_movsi (riscv_subword (operands[0], false), temp));
|
|
|
|
|
+ DONE;
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+})
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+(define_insn "<u>mulsi3_highpart"
|
|
|
|
|
+ [(set (match_operand:SI 0 "register_operand" "=r")
|
|
|
|
|
+ (truncate:SI
|
|
|
|
|
+ (lshiftrt:DI
|
|
|
|
|
+ (mult:DI (any_extend:DI
|
|
|
|
|
+ (match_operand:SI 1 "register_operand" "r"))
|
|
|
|
|
+ (any_extend:DI
|
|
|
|
|
+ (match_operand:SI 2 "register_operand" "r")))
|
|
|
|
|
+ (const_int 32))))]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "TARGET_MUL && !TARGET_64BIT"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "mulh<u>\t%0,%1,%2"
|
|
|
|
|
+ [(set_attr "type" "imul")
|
|
|
|
|
+ (set_attr "mode" "SI")])
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "usmulsidi3"
|
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand" "=r")
|
|
|
|
|
+ (mult:DI (zero_extend:DI
|
|
|
|
|
+ (match_operand:SI 1 "register_operand" "r"))
|
|
|
|
|
+ (sign_extend:DI
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (match_operand:SI 2 "register_operand" "r"))))]
|
|
|
|
|
+ "TARGET_MUL && !TARGET_64BIT"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
|
|
|
|
+ rtx temp = gen_reg_rtx (SImode);
|
|
|
|
|
+ emit_insn (gen_mulsi3 (temp, operands[1], operands[2]));
|
|
|
|
|
+ emit_insn (gen_usmulsi3_highpart (riscv_subword (operands[0], true),
|
|
|
|
|
+ operands[1], operands[2]));
|
|
|
|
|
+ emit_insn (gen_movsi (riscv_subword (operands[0], false), temp));
|
|
|
|
|
+ DONE;
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+})
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+(define_insn "usmulsi3_highpart"
|
|
|
|
|
+ [(set (match_operand:SI 0 "register_operand" "=r")
|
|
|
|
|
+ (truncate:SI
|
|
|
|
|
+ (lshiftrt:DI
|
|
|
|
|
+ (mult:DI (zero_extend:DI
|
|
|
|
|
+ (match_operand:SI 1 "register_operand" "r"))
|
|
|
|
|
+ (sign_extend:DI
|
|
|
|
|
+ (match_operand:SI 2 "register_operand" "r")))
|
|
|
|
|
+ (const_int 32))))]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "TARGET_MUL && !TARGET_64BIT"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "mulhsu\t%0,%2,%1"
|
|
|
|
|
+ [(set_attr "type" "imul")
|
|
|
|
|
+ (set_attr "mode" "SI")])
|
|
|
|
|
+
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+;; DIVISION and REMAINDER
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "<optab>si3"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (match_operand:SI 0 "register_operand" "=r")
|
|
|
|
|
+ (any_div:SI (match_operand:SI 1 "register_operand" "r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (match_operand:SI 2 "register_operand" "r")))]
|
|
|
|
|
+ "TARGET_DIV"
|
|
|
|
|
+ { return TARGET_64BIT ? "<insn>w\t%0,%1,%2" : "<insn>\t%0,%1,%2"; }
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set_attr "type" "idiv")
|
|
|
|
|
+ (set_attr "mode" "SI")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "<optab>di3"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand" "=r")
|
|
|
|
|
+ (any_div:DI (match_operand:DI 1 "register_operand" "r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (match_operand:DI 2 "register_operand" "r")))]
|
|
|
|
|
+ "TARGET_DIV && TARGET_64BIT"
|
|
|
|
|
+ "<insn>\t%0,%1,%2"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set_attr "type" "idiv")
|
|
|
|
|
+ (set_attr "mode" "DI")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "*<optab>si3_extended"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand" "=r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (sign_extend:DI
|
|
|
|
|
+ (any_div:SI (match_operand:SI 1 "register_operand" "r")
|
|
|
|
|
+ (match_operand:SI 2 "register_operand" "r"))))]
|
|
|
|
|
+ "TARGET_DIV && TARGET_64BIT"
|
|
|
|
|
+ "<insn>w\t%0,%1,%2"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set_attr "type" "idiv")
|
|
|
|
|
+ (set_attr "mode" "DI")])
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "div<mode>3"
|
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
|
|
|
|
+ (div:ANYF (match_operand:ANYF 1 "register_operand" "f")
|
|
|
|
|
+ (match_operand:ANYF 2 "register_operand" "f")))]
|
|
|
|
|
+ "TARGET_HARD_FLOAT && TARGET_FDIV"
|
|
|
|
|
+ "fdiv.<fmt>\t%0,%1,%2"
|
|
|
|
|
+ [(set_attr "type" "fdiv")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")])
|
|
|
|
|
+
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+;; SQUARE ROOT
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "sqrt<mode>2"
|
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
|
|
|
|
+ (sqrt:ANYF (match_operand:ANYF 1 "register_operand" "f")))]
|
|
|
|
|
+ "TARGET_HARD_FLOAT && TARGET_FDIV"
|
|
|
|
|
+{
|
|
|
|
|
+ return "fsqrt.<fmt>\t%0,%1";
|
|
|
|
|
+}
|
|
|
|
|
+ [(set_attr "type" "fsqrt")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")])
|
|
|
|
|
+
|
|
|
|
|
+;; Floating point multiply accumulate instructions.
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; a * b + c
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+(define_insn "fma<mode>4"
|
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
|
|
|
|
+ (fma:ANYF
|
|
|
|
|
+ (match_operand:ANYF 1 "register_operand" "f")
|
|
|
|
|
+ (match_operand:ANYF 2 "register_operand" "f")
|
|
|
|
|
+ (match_operand:ANYF 3 "register_operand" "f")))]
|
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
|
|
|
|
+ "fmadd.<fmt>\t%0,%1,%2,%3"
|
|
|
|
|
+ [(set_attr "type" "fmadd")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; a * b - c
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+(define_insn "fms<mode>4"
|
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
|
|
|
|
+ (fma:ANYF
|
|
|
|
|
+ (match_operand:ANYF 1 "register_operand" "f")
|
|
|
|
|
+ (match_operand:ANYF 2 "register_operand" "f")
|
|
|
|
|
+ (neg:ANYF (match_operand:ANYF 3 "register_operand" "f"))))]
|
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
|
|
|
|
+ "fmsub.<fmt>\t%0,%1,%2,%3"
|
|
|
|
|
+ [(set_attr "type" "fmadd")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; -a * b - c
|
|
|
|
|
+(define_insn "fnms<mode>4"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (fma:ANYF
|
|
|
|
|
+ (neg:ANYF (match_operand:ANYF 1 "register_operand" "f"))
|
|
|
|
|
+ (match_operand:ANYF 2 "register_operand" "f")
|
|
|
|
|
+ (neg:ANYF (match_operand:ANYF 3 "register_operand" "f"))))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
|
|
|
|
+ "fnmadd.<fmt>\t%0,%1,%2,%3"
|
|
|
|
|
+ [(set_attr "type" "fmadd")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; -a * b + c
|
|
|
|
|
+(define_insn "fnma<mode>4"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (fma:ANYF
|
|
|
|
|
+ (neg:ANYF (match_operand:ANYF 1 "register_operand" "f"))
|
|
|
|
|
+ (match_operand:ANYF 2 "register_operand" "f")
|
|
|
|
|
+ (match_operand:ANYF 3 "register_operand" "f")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
|
|
|
|
+ "fnmsub.<fmt>\t%0,%1,%2,%3"
|
|
|
|
|
+ [(set_attr "type" "fmadd")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; -(-a * b - c), modulo signed zeros
|
|
|
|
|
+(define_insn "*fma<mode>4"
|
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
|
|
|
|
+ (neg:ANYF
|
|
|
|
|
+ (fma:ANYF
|
|
|
|
|
+ (neg:ANYF (match_operand:ANYF 1 "register_operand" "f"))
|
|
|
|
|
+ (match_operand:ANYF 2 "register_operand" "f")
|
|
|
|
|
+ (neg:ANYF (match_operand:ANYF 3 "register_operand" "f")))))]
|
|
|
|
|
+ "TARGET_HARD_FLOAT && !HONOR_SIGNED_ZEROS (<MODE>mode)"
|
|
|
|
|
+ "fmadd.<fmt>\t%0,%1,%2,%3"
|
|
|
|
|
+ [(set_attr "type" "fmadd")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")])
|
|
|
|
|
+
|
|
|
|
|
+;; -(-a * b + c), modulo signed zeros
|
|
|
|
|
+(define_insn "*fms<mode>4"
|
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
|
|
|
|
+ (neg:ANYF
|
|
|
|
|
+ (fma:ANYF
|
|
|
|
|
+ (neg:ANYF (match_operand:ANYF 1 "register_operand" "f"))
|
|
|
|
|
+ (match_operand:ANYF 2 "register_operand" "f")
|
|
|
|
|
+ (match_operand:ANYF 3 "register_operand" "f"))))]
|
|
|
|
|
+ "TARGET_HARD_FLOAT && !HONOR_SIGNED_ZEROS (<MODE>mode)"
|
|
|
|
|
+ "fmsub.<fmt>\t%0,%1,%2,%3"
|
|
|
|
|
+ [(set_attr "type" "fmadd")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")])
|
|
|
|
|
+
|
|
|
|
|
+;; -(a * b + c), modulo signed zeros
|
|
|
|
|
+(define_insn "*fnms<mode>4"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (neg:ANYF
|
|
|
|
|
+ (fma:ANYF
|
|
|
|
|
+ (match_operand:ANYF 1 "register_operand" "f")
|
|
|
|
|
+ (match_operand:ANYF 2 "register_operand" "f")
|
|
|
|
|
+ (match_operand:ANYF 3 "register_operand" "f"))))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "TARGET_HARD_FLOAT && !HONOR_SIGNED_ZEROS (<MODE>mode)"
|
|
|
|
|
+ "fnmadd.<fmt>\t%0,%1,%2,%3"
|
|
|
|
|
+ [(set_attr "type" "fmadd")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; -(a * b - c), modulo signed zeros
|
|
|
|
|
+(define_insn "*fnma<mode>4"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (neg:ANYF
|
|
|
|
|
+ (fma:ANYF
|
|
|
|
|
+ (match_operand:ANYF 1 "register_operand" "f")
|
|
|
|
|
+ (match_operand:ANYF 2 "register_operand" "f")
|
|
|
|
|
+ (neg:ANYF (match_operand:ANYF 3 "register_operand" "f")))))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "TARGET_HARD_FLOAT && !HONOR_SIGNED_ZEROS (<MODE>mode)"
|
|
|
|
|
+ "fnmsub.<fmt>\t%0,%1,%2,%3"
|
|
|
|
|
+ [(set_attr "type" "fmadd")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")])
|
|
|
|
|
+
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; SIGN INJECTION
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "abs<mode>2"
|
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
|
|
|
|
+ (abs:ANYF (match_operand:ANYF 1 "register_operand" "f")))]
|
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
|
|
|
|
+ "fabs.<fmt>\t%0,%1"
|
|
|
|
|
+ [(set_attr "type" "fmove")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "copysign<mode>3"
|
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
|
|
|
|
+ (unspec:ANYF [(match_operand:ANYF 1 "register_operand" "f")
|
|
|
|
|
+ (match_operand:ANYF 2 "register_operand" "f")]
|
|
|
|
|
+ UNSPEC_COPYSIGN))]
|
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
|
|
|
|
+ "fsgnj.<fmt>\t%0,%1,%2"
|
|
|
|
|
+ [(set_attr "type" "fmove")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")])
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "neg<mode>2"
|
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
|
|
|
|
+ (neg:ANYF (match_operand:ANYF 1 "register_operand" "f")))]
|
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
|
|
|
|
+ "fneg.<fmt>\t%0,%1"
|
|
|
|
|
+ [(set_attr "type" "fmove")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+;; MIN/MAX
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "smin<mode>3"
|
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
|
|
|
|
+ (smin:ANYF (match_operand:ANYF 1 "register_operand" "f")
|
|
|
|
|
+ (match_operand:ANYF 2 "register_operand" "f")))]
|
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
|
|
|
|
+ "fmin.<fmt>\t%0,%1,%2"
|
|
|
|
|
+ [(set_attr "type" "fmove")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "smax<mode>3"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (smax:ANYF (match_operand:ANYF 1 "register_operand" "f")
|
|
|
|
|
+ (match_operand:ANYF 2 "register_operand" "f")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "fmax.<fmt>\t%0,%1,%2"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set_attr "type" "fmove")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")])
|
|
|
|
|
+
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+;; LOGICAL
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; For RV64, we don't expose the SImode operations to the rtl expanders,
|
|
|
|
|
+;; but SImode versions exist for combine.
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "<optab><mode>3"
|
|
|
|
|
+ [(set (match_operand:X 0 "register_operand" "=r,r")
|
|
|
|
|
+ (any_bitwise:X (match_operand:X 1 "register_operand" "%r,r")
|
|
|
|
|
+ (match_operand:X 2 "arith_operand" "r,I")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "<insn>\t%0,%1,%2"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set_attr "type" "logical")
|
|
|
|
|
+ (set_attr "mode" "<MODE>")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "*<optab>si3_internal"
|
|
|
|
|
+ [(set (match_operand:SI 0 "register_operand" "=r,r")
|
|
|
|
|
+ (any_bitwise:SI (match_operand:SI 1 "register_operand" "%r,r")
|
|
|
|
|
+ (match_operand:SI 2 "arith_operand" "r,I")))]
|
|
|
|
|
+ "TARGET_64BIT"
|
|
|
|
|
+ "<insn>\t%0,%1,%2"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set_attr "type" "logical")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (set_attr "mode" "SI")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "one_cmpl<mode>2"
|
|
|
|
|
+ [(set (match_operand:X 0 "register_operand" "=r")
|
|
|
|
|
+ (not:X (match_operand:X 1 "register_operand" "r")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "not\t%0,%1"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set_attr "type" "logical")
|
|
|
|
|
+ (set_attr "mode" "<MODE>")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "*one_cmplsi2_internal"
|
|
|
|
|
+ [(set (match_operand:SI 0 "register_operand" "=r")
|
|
|
|
|
+ (not:SI (match_operand:SI 1 "register_operand" "r")))]
|
|
|
|
|
+ "TARGET_64BIT"
|
|
|
|
|
+ "not\t%0,%1"
|
|
|
|
|
+ [(set_attr "type" "logical")
|
|
|
|
|
+ (set_attr "mode" "SI")])
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+;; TRUNCATION
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "truncdfsf2"
|
|
|
|
|
+ [(set (match_operand:SF 0 "register_operand" "=f")
|
|
|
|
|
+ (float_truncate:SF (match_operand:DF 1 "register_operand" "f")))]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "TARGET_DOUBLE_FLOAT"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "fcvt.s.d\t%0,%1"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(set_attr "type" "fcvt")
|
|
|
|
|
+ (set_attr "mode" "SF")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+;; ZERO EXTENSION
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+
|
|
|
|
|
+;; Extension insns.
|
|
|
|
|
+
|
|
|
|
|
+(define_insn_and_split "zero_extendsidi2"
|
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand" "=r,r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (zero_extend:DI (match_operand:SI 1 "nonimmediate_operand" "r,m")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "TARGET_64BIT"
|
|
|
|
|
+ "@
|
|
|
|
|
+ #
|
|
|
|
|
+ lwu\t%0,%1"
|
|
|
|
|
+ "&& reload_completed && REG_P (operands[1])"
|
|
|
|
|
+ [(set (match_dup 0)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (ashift:DI (match_dup 1) (const_int 32)))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (set (match_dup 0)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (lshiftrt:DI (match_dup 0) (const_int 32)))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ { operands[1] = gen_lowpart (DImode, operands[1]); }
|
|
|
|
|
+ [(set_attr "move_type" "shift_shift,load")
|
|
|
|
|
+ (set_attr "mode" "DI")])
|
|
|
|
|
+
|
|
|
|
|
+(define_insn_and_split "zero_extendhi<GPR:mode>2"
|
|
|
|
|
+ [(set (match_operand:GPR 0 "register_operand" "=r,r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (zero_extend:GPR (match_operand:HI 1 "nonimmediate_operand" "r,m")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
|
|
|
|
+ "@
|
|
|
|
|
+ #
|
|
|
|
|
+ lhu\t%0,%1"
|
|
|
|
|
+ "&& reload_completed && REG_P (operands[1])"
|
|
|
|
|
+ [(set (match_dup 0)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (ashift:GPR (match_dup 1) (match_dup 2)))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (set (match_dup 0)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (lshiftrt:GPR (match_dup 0) (match_dup 2)))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ {
|
|
|
|
|
+ operands[1] = gen_lowpart (<GPR:MODE>mode, operands[1]);
|
|
|
|
|
+ operands[2] = GEN_INT(GET_MODE_BITSIZE(<GPR:MODE>mode) - 16);
|
|
|
|
|
+ }
|
|
|
|
|
+ [(set_attr "move_type" "shift_shift,load")
|
|
|
|
|
+ (set_attr "mode" "<GPR:MODE>")])
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "zero_extendqi<SUPERQI:mode>2"
|
|
|
|
|
+ [(set (match_operand:SUPERQI 0 "register_operand" "=r,r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (zero_extend:SUPERQI
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (match_operand:QI 1 "nonimmediate_operand" "r,m")))]
|
|
|
|
|
+ ""
|
|
|
|
|
+ "@
|
|
|
|
|
+ and\t%0,%1,0xff
|
|
|
|
|
+ lbu\t%0,%1"
|
|
|
|
|
+ [(set_attr "move_type" "andi,load")
|
|
|
|
|
+ (set_attr "mode" "<SUPERQI:MODE>")])
|
|
|
|
|
+
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+;; SIGN EXTENSION
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "extendsidi2"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand" "=r,r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (sign_extend:DI (match_operand:SI 1 "nonimmediate_operand" "r,m")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "TARGET_64BIT"
|
|
|
|
|
+ "@
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ sext.w\t%0,%1
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ lw\t%0,%1"
|
|
|
|
|
+ [(set_attr "move_type" "move,load")
|
|
|
|
|
+ (set_attr "mode" "DI")])
|
|
|
|
|
+
|
|
|
|
|
+(define_insn_and_split "extend<SHORT:mode><SUPERQI:mode>2"
|
|
|
|
|
+ [(set (match_operand:SUPERQI 0 "register_operand" "=r,r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (sign_extend:SUPERQI
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (match_operand:SHORT 1 "nonimmediate_operand" "r,m")))]
|
|
|
|
|
+ ""
|
|
|
|
|
+ "@
|
|
|
|
|
+ #
|
|
|
|
|
+ l<SHORT:size>\t%0,%1"
|
|
|
|
|
+ "&& reload_completed && REG_P (operands[1])"
|
|
|
|
|
+ [(set (match_dup 0) (ashift:SI (match_dup 1) (match_dup 2)))
|
|
|
|
|
+ (set (match_dup 0) (ashiftrt:SI (match_dup 0) (match_dup 2)))]
|
|
|
|
|
+{
|
|
|
|
|
+ operands[0] = gen_lowpart (SImode, operands[0]);
|
|
|
|
|
+ operands[1] = gen_lowpart (SImode, operands[1]);
|
|
|
|
|
+ operands[2] = GEN_INT (GET_MODE_BITSIZE (SImode)
|
|
|
|
|
+ - GET_MODE_BITSIZE (<SHORT:MODE>mode));
|
|
|
|
|
+}
|
|
|
|
|
+ [(set_attr "move_type" "shift_shift,load")
|
|
|
|
|
+ (set_attr "mode" "SI")])
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "extendsfdf2"
|
|
|
|
|
+ [(set (match_operand:DF 0 "register_operand" "=f")
|
|
|
|
|
+ (float_extend:DF (match_operand:SF 1 "register_operand" "f")))]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "TARGET_DOUBLE_FLOAT"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "fcvt.d.s\t%0,%1"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(set_attr "type" "fcvt")
|
|
|
|
|
+ (set_attr "mode" "DF")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+;; CONVERSIONS
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "fix_trunc<ANYF:mode><GPR:mode>2"
|
|
|
|
|
+ [(set (match_operand:GPR 0 "register_operand" "=r")
|
|
|
|
|
+ (fix:GPR (match_operand:ANYF 1 "register_operand" "f")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "fcvt.<GPR:ifmt>.<ANYF:fmt> %0,%1,rtz"
|
|
|
|
|
+ [(set_attr "type" "fcvt")
|
|
|
|
|
+ (set_attr "mode" "<ANYF:MODE>")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "fixuns_trunc<ANYF:mode><GPR:mode>2"
|
|
|
|
|
+ [(set (match_operand:GPR 0 "register_operand" "=r")
|
|
|
|
|
+ (unsigned_fix:GPR (match_operand:ANYF 1 "register_operand" "f")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "fcvt.<GPR:ifmt>u.<ANYF:fmt> %0,%1,rtz"
|
|
|
|
|
+ [(set_attr "type" "fcvt")
|
|
|
|
|
+ (set_attr "mode" "<ANYF:MODE>")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "float<GPR:mode><ANYF:mode>2"
|
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
|
|
|
|
+ (float:ANYF (match_operand:GPR 1 "reg_or_0_operand" "rJ")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "fcvt.<ANYF:fmt>.<GPR:ifmt>\t%0,%z1"
|
|
|
|
|
+ [(set_attr "type" "fcvt")
|
|
|
|
|
+ (set_attr "mode" "<ANYF:MODE>")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "floatuns<GPR:mode><ANYF:mode>2"
|
|
|
|
|
+ [(set (match_operand:ANYF 0 "register_operand" "=f")
|
|
|
|
|
+ (unsigned_float:ANYF (match_operand:GPR 1 "reg_or_0_operand" "rJ")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "fcvt.<ANYF:fmt>.<GPR:ifmt>u\t%0,%z1"
|
|
|
|
|
+ [(set_attr "type" "fcvt")
|
|
|
|
|
+ (set_attr "mode" "<ANYF:MODE>")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "l<rint_pattern><ANYF:mode><GPR:mode>2"
|
|
|
|
|
+ [(set (match_operand:GPR 0 "register_operand" "=r")
|
|
|
|
|
+ (unspec:GPR [(match_operand:ANYF 1 "register_operand" "f")]
|
|
|
|
|
+ RINT))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "fcvt.<GPR:ifmt>.<ANYF:fmt> %0,%1,<rint_rm>"
|
|
|
|
|
+ [(set_attr "type" "fcvt")
|
|
|
|
|
+ (set_attr "mode" "<ANYF:MODE>")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+;; DATA MOVEMENT
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+
|
|
|
|
|
+;; Lower-level instructions for loading an address from the GOT.
|
|
|
|
|
+;; We could use MEMs, but an unspec gives more optimization
|
|
|
|
|
+;; opportunities.
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "got_load<mode>"
|
|
|
|
|
+ [(set (match_operand:P 0 "register_operand" "=r")
|
|
|
|
|
+ (unspec:P [(match_operand:P 1 "symbolic_operand" "")]
|
|
|
|
|
+ UNSPEC_LOAD_GOT))]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ ""
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "la\t%0,%1"
|
|
|
|
|
+ [(set_attr "got" "load")
|
|
|
|
|
+ (set_attr "mode" "<MODE>")])
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "tls_add_tp_le<mode>"
|
|
|
|
|
+ [(set (match_operand:P 0 "register_operand" "=r")
|
|
|
|
|
+ (unspec:P [(match_operand:P 1 "register_operand" "r")
|
|
|
|
|
+ (match_operand:P 2 "register_operand" "r")
|
|
|
|
|
+ (match_operand:P 3 "symbolic_operand" "")]
|
|
|
|
|
+ UNSPEC_TLS_LE))]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ ""
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "add\t%0,%1,%2,%%tprel_add(%3)"
|
|
|
|
|
+ [(set_attr "type" "arith")
|
|
|
|
|
+ (set_attr "mode" "<MODE>")])
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "got_load_tls_gd<mode>"
|
|
|
|
|
+ [(set (match_operand:P 0 "register_operand" "=r")
|
|
|
|
|
+ (unspec:P [(match_operand:P 1 "symbolic_operand" "")]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ UNSPEC_TLS_GD))]
|
|
|
|
|
+ ""
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "la.tls.gd\t%0,%1"
|
|
|
|
|
+ [(set_attr "got" "load")
|
|
|
|
|
+ (set_attr "mode" "<MODE>")])
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "got_load_tls_ie<mode>"
|
|
|
|
|
+ [(set (match_operand:P 0 "register_operand" "=r")
|
|
|
|
|
+ (unspec:P [(match_operand:P 1 "symbolic_operand" "")]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ UNSPEC_TLS_IE))]
|
|
|
|
|
+ ""
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "la.tls.ie\t%0,%1"
|
|
|
|
|
+ [(set_attr "got" "load")
|
|
|
|
|
+ (set_attr "mode" "<MODE>")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "auipc<mode>"
|
|
|
|
|
+ [(set (match_operand:P 0 "register_operand" "=r")
|
|
|
|
|
+ (unspec:P [(match_operand:P 1 "symbolic_operand" "")
|
|
|
|
|
+ (match_operand:P 2 "const_int_operand")
|
|
|
|
|
+ (pc)]
|
|
|
|
|
+ UNSPEC_AUIPC))]
|
|
|
|
|
+ ""
|
|
|
|
|
+ ".LA%2: auipc\t%0,%h1"
|
|
|
|
|
+ [(set_attr "type" "arith")
|
|
|
|
|
+ (set_attr "cannot_copy" "yes")])
|
|
|
|
|
+
|
|
|
|
|
+;; Instructions for adding the low 12 bits of an address to a register.
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+;; Operand 2 is the address: riscv_print_operand works out which relocation
|
|
|
|
|
+;; should be applied.
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "*low<mode>"
|
|
|
|
|
+ [(set (match_operand:P 0 "register_operand" "=r")
|
|
|
|
|
+ (lo_sum:P (match_operand:P 1 "register_operand" "r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (match_operand:P 2 "symbolic_operand" "")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "addi\t%0,%1,%R2"
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ [(set_attr "type" "arith")
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (set_attr "mode" "<MODE>")])
|
|
|
|
|
+
|
|
|
|
|
+;; Allow combine to split complex const_int load sequences, using operand 2
|
|
|
|
|
+;; to store the intermediate results. See move_operand for details.
|
|
|
|
|
+(define_split
|
|
|
|
|
+ [(set (match_operand:GPR 0 "register_operand")
|
|
|
|
|
+ (match_operand:GPR 1 "splittable_const_int_operand"))
|
|
|
|
|
+ (clobber (match_operand:GPR 2 "register_operand"))]
|
|
|
|
|
+ ""
|
|
|
|
|
+ [(const_int 0)]
|
|
|
|
|
+{
|
|
|
|
|
+ riscv_move_integer (operands[2], operands[0], INTVAL (operands[1]));
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+;; Likewise, for symbolic operands.
|
|
|
|
|
+(define_split
|
|
|
|
|
+ [(set (match_operand:P 0 "register_operand")
|
|
|
|
|
+ (match_operand:P 1))
|
|
|
|
|
+ (clobber (match_operand:P 2 "register_operand"))]
|
|
|
|
|
+ "riscv_split_symbol (operands[2], operands[1], MAX_MACHINE_MODE, NULL)"
|
|
|
|
|
+ [(set (match_dup 0) (match_dup 3))]
|
|
|
|
|
+{
|
|
|
|
|
+ riscv_split_symbol (operands[2], operands[1],
|
|
|
|
|
+ MAX_MACHINE_MODE, &operands[3]);
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+;; 64-bit integer moves
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "movdi"
|
|
|
|
|
+ [(set (match_operand:DI 0 "")
|
|
|
|
|
+ (match_operand:DI 1 ""))]
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
|
|
|
|
+ if (riscv_legitimize_move (DImode, operands[0], operands[1]))
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "*movdi_32bit"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(set (match_operand:DI 0 "nonimmediate_operand" "=r,r,r,m, *f,*f,*r,*f,*m")
|
|
|
|
|
+ (match_operand:DI 1 "move_operand" " r,i,m,r,*J*r,*m,*f,*f,*f"))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "!TARGET_64BIT
|
|
|
|
|
+ && (register_operand (operands[0], DImode)
|
|
|
|
|
+ || reg_or_0_operand (operands[1], DImode))"
|
|
|
|
|
+ { return riscv_output_move (operands[0], operands[1]); }
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(set_attr "move_type" "move,const,load,store,mtc,fpload,mfc,fmove,fpstore")
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (set_attr "mode" "DI")])
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "*movdi_64bit"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(set (match_operand:DI 0 "nonimmediate_operand" "=r,r,r, m,*f,*f,*r,*f,*m")
|
|
|
|
|
+ (match_operand:DI 1 "move_operand" " r,T,m,rJ,*r*J,*m,*f,*f,*f"))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "TARGET_64BIT
|
|
|
|
|
+ && (register_operand (operands[0], DImode)
|
|
|
|
|
+ || reg_or_0_operand (operands[1], DImode))"
|
|
|
|
|
+ { return riscv_output_move (operands[0], operands[1]); }
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(set_attr "move_type" "move,const,load,store,mtc,fpload,mfc,fmove,fpstore")
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (set_attr "mode" "DI")])
|
|
|
|
|
+
|
|
|
|
|
+;; 32-bit Integer moves
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "mov<mode>"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(set (match_operand:MOVE32 0 "")
|
|
|
|
|
+ (match_operand:MOVE32 1 ""))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
|
|
|
|
+{
|
|
|
|
|
+ if (riscv_legitimize_move (<MODE>mode, operands[0], operands[1]))
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "*movsi_internal"
|
|
|
|
|
+ [(set (match_operand:SI 0 "nonimmediate_operand" "=r,r,r,m,*f,*f,*r,*m")
|
|
|
|
|
+ (match_operand:SI 1 "move_operand" "r,T,m,rJ,*r*J,*m,*f,*f"))]
|
|
|
|
|
+ "(register_operand (operands[0], SImode)
|
|
|
|
|
+ || reg_or_0_operand (operands[1], SImode))"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ { return riscv_output_move (operands[0], operands[1]); }
|
|
|
|
|
+ [(set_attr "move_type" "move,const,load,store,mtc,fpload,mfc,fpstore")
|
|
|
|
|
+ (set_attr "mode" "SI")])
|
|
|
|
|
+
|
|
|
|
|
+;; 16-bit Integer moves
|
|
|
|
|
+
|
|
|
|
|
+;; Unlike most other insns, the move insns can't be split with
|
|
|
|
|
+;; different predicates, because register spilling and other parts of
|
|
|
|
|
+;; the compiler, have memoized the insn number already.
|
|
|
|
|
+;; Unsigned loads are used because LOAD_EXTEND_OP returns ZERO_EXTEND.
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "movhi"
|
|
|
|
|
+ [(set (match_operand:HI 0 "")
|
|
|
|
|
+ (match_operand:HI 1 ""))]
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
|
|
|
|
+ if (riscv_legitimize_move (HImode, operands[0], operands[1]))
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "*movhi_internal"
|
|
|
|
|
+ [(set (match_operand:HI 0 "nonimmediate_operand" "=r,r,r,m,*f,*r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (match_operand:HI 1 "move_operand" "r,T,m,rJ,*r*J,*f"))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "(register_operand (operands[0], HImode)
|
|
|
|
|
+ || reg_or_0_operand (operands[1], HImode))"
|
|
|
|
|
+ { return riscv_output_move (operands[0], operands[1]); }
|
|
|
|
|
+ [(set_attr "move_type" "move,const,load,store,mtc,mfc")
|
|
|
|
|
+ (set_attr "mode" "HI")])
|
|
|
|
|
+
|
|
|
|
|
+;; HImode constant generation; see riscv_move_integer for details.
|
|
|
|
|
+;; si+si->hi without truncation is legal because of TRULY_NOOP_TRUNCATION.
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "*add<mode>hi3"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (match_operand:HI 0 "register_operand" "=r,r")
|
|
|
|
|
+ (plus:HI (match_operand:HISI 1 "register_operand" "r,r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (match_operand:HISI 2 "arith_operand" "r,I")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
|
|
|
|
+ { return TARGET_64BIT ? "addw\t%0,%1,%2" : "add\t%0,%1,%2"; }
|
|
|
|
|
+ [(set_attr "type" "arith")
|
|
|
|
|
+ (set_attr "mode" "HI")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "*xor<mode>hi3"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (match_operand:HI 0 "register_operand" "=r,r")
|
|
|
|
|
+ (xor:HI (match_operand:HISI 1 "register_operand" "r,r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (match_operand:HISI 2 "arith_operand" "r,I")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
|
|
|
|
+ "xor\t%0,%1,%2"
|
|
|
|
|
+ [(set_attr "type" "logical")
|
|
|
|
|
+ (set_attr "mode" "HI")])
|
|
|
|
|
+
|
|
|
|
|
+;; 8-bit Integer moves
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "movqi"
|
|
|
|
|
+ [(set (match_operand:QI 0 "")
|
|
|
|
|
+ (match_operand:QI 1 ""))]
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
|
|
|
|
+ if (riscv_legitimize_move (QImode, operands[0], operands[1]))
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "*movqi_internal"
|
|
|
|
|
+ [(set (match_operand:QI 0 "nonimmediate_operand" "=r,r,r,m,*f,*r")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (match_operand:QI 1 "move_operand" "r,I,m,rJ,*r*J,*f"))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "(register_operand (operands[0], QImode)
|
|
|
|
|
+ || reg_or_0_operand (operands[1], QImode))"
|
|
|
|
|
+ { return riscv_output_move (operands[0], operands[1]); }
|
|
|
|
|
+ [(set_attr "move_type" "move,const,load,store,mtc,mfc")
|
|
|
|
|
+ (set_attr "mode" "QI")])
|
|
|
|
|
+
|
|
|
|
|
+;; 32-bit floating point moves
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "movsf"
|
|
|
|
|
+ [(set (match_operand:SF 0 "")
|
|
|
|
|
+ (match_operand:SF 1 ""))]
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
|
|
|
|
+ if (riscv_legitimize_move (SFmode, operands[0], operands[1]))
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "*movsf_hardfloat"
|
|
|
|
|
+ [(set (match_operand:SF 0 "nonimmediate_operand" "=f,f,f,m,m,*f,*r,*r,*r,*m")
|
|
|
|
|
+ (match_operand:SF 1 "move_operand" "f,G,m,f,G,*r,*f,*G*r,*m,*r"))]
|
|
|
|
|
+ "TARGET_HARD_FLOAT
|
|
|
|
|
+ && (register_operand (operands[0], SFmode)
|
|
|
|
|
+ || reg_or_0_operand (operands[1], SFmode))"
|
|
|
|
|
+ { return riscv_output_move (operands[0], operands[1]); }
|
|
|
|
|
+ [(set_attr "move_type" "fmove,mtc,fpload,fpstore,store,mtc,mfc,move,load,store")
|
|
|
|
|
+ (set_attr "mode" "SF")])
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "*movsf_softfloat"
|
|
|
|
|
+ [(set (match_operand:SF 0 "nonimmediate_operand" "=r,r,m")
|
|
|
|
|
+ (match_operand:SF 1 "move_operand" "Gr,m,r"))]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "!TARGET_HARD_FLOAT
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ && (register_operand (operands[0], SFmode)
|
|
|
|
|
+ || reg_or_0_operand (operands[1], SFmode))"
|
|
|
|
|
+ { return riscv_output_move (operands[0], operands[1]); }
|
|
|
|
|
+ [(set_attr "move_type" "move,load,store")
|
|
|
|
|
+ (set_attr "mode" "SF")])
|
|
|
|
|
+
|
|
|
|
|
+;; 64-bit floating point moves
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "movdf"
|
|
|
|
|
+ [(set (match_operand:DF 0 "")
|
|
|
|
|
+ (match_operand:DF 1 ""))]
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
|
|
|
|
+ if (riscv_legitimize_move (DFmode, operands[0], operands[1]))
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; In RV32, we lack fmv.x.d and fmv.d.x. Go through memory instead.
|
|
|
|
|
+;; (However, we can still use fcvt.d.w to zero a floating-point register.)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+(define_insn "*movdf_hardfloat_rv32"
|
|
|
|
|
+ [(set (match_operand:DF 0 "nonimmediate_operand" "=f,f,f,m,m,*r,*r,*m")
|
|
|
|
|
+ (match_operand:DF 1 "move_operand" "f,G,m,f,G,*r*G,*m,*r"))]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "!TARGET_64BIT && TARGET_DOUBLE_FLOAT
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ && (register_operand (operands[0], DFmode)
|
|
|
|
|
+ || reg_or_0_operand (operands[1], DFmode))"
|
|
|
|
|
+ { return riscv_output_move (operands[0], operands[1]); }
|
|
|
|
|
+ [(set_attr "move_type" "fmove,mtc,fpload,fpstore,store,move,load,store")
|
|
|
|
|
+ (set_attr "mode" "DF")])
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "*movdf_hardfloat_rv64"
|
|
|
|
|
+ [(set (match_operand:DF 0 "nonimmediate_operand" "=f,f,f,m,m,*f,*r,*r,*r,*m")
|
|
|
|
|
+ (match_operand:DF 1 "move_operand" "f,G,m,f,G,*r,*f,*r*G,*m,*r"))]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "TARGET_64BIT && TARGET_DOUBLE_FLOAT
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ && (register_operand (operands[0], DFmode)
|
|
|
|
|
+ || reg_or_0_operand (operands[1], DFmode))"
|
|
|
|
|
+ { return riscv_output_move (operands[0], operands[1]); }
|
|
|
|
|
+ [(set_attr "move_type" "fmove,mtc,fpload,fpstore,store,mtc,mfc,move,load,store")
|
|
|
|
|
+ (set_attr "mode" "DF")])
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "*movdf_softfloat"
|
|
|
|
|
+ [(set (match_operand:DF 0 "nonimmediate_operand" "=r,r,m")
|
|
|
|
|
+ (match_operand:DF 1 "move_operand" "rG,m,rG"))]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "!TARGET_DOUBLE_FLOAT
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ && (register_operand (operands[0], DFmode)
|
|
|
|
|
+ || reg_or_0_operand (operands[1], DFmode))"
|
|
|
|
|
+ { return riscv_output_move (operands[0], operands[1]); }
|
|
|
|
|
+ [(set_attr "move_type" "move,load,store")
|
|
|
|
|
+ (set_attr "mode" "DF")])
|
|
|
|
|
+
|
|
|
|
|
+(define_split
|
|
|
|
|
+ [(set (match_operand:MOVE64 0 "nonimmediate_operand")
|
|
|
|
|
+ (match_operand:MOVE64 1 "move_operand"))]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "reload_completed
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ && riscv_split_64bit_move_p (operands[0], operands[1])"
|
|
|
|
|
+ [(const_int 0)]
|
|
|
|
|
+{
|
|
|
|
|
+ riscv_split_doubleword_move (operands[0], operands[1]);
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+;; Expand in-line code to clear the instruction cache between operand[0] and
|
|
|
|
|
+;; operand[1].
|
|
|
|
|
+(define_expand "clear_cache"
|
|
|
|
|
+ [(match_operand 0 "pmode_register_operand")
|
|
|
|
|
+ (match_operand 1 "pmode_register_operand")]
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ emit_insn (gen_fence_i ());
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ DONE;
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+})
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+(define_insn "fence"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(unspec_volatile [(const_int 0)] UNSPECV_FENCE)]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
|
|
|
|
+ "%|fence%-")
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "fence_i"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(unspec_volatile [(const_int 0)] UNSPECV_FENCE_I)]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
|
|
|
|
+ "fence.i")
|
|
|
|
|
+
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+;; SHIFTS
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "<optab>si3"
|
|
|
|
|
+ [(set (match_operand:SI 0 "register_operand" "=r")
|
|
|
|
|
+ (any_shift:SI (match_operand:SI 1 "register_operand" "r")
|
|
|
|
|
+ (match_operand:SI 2 "arith_operand" "rI")))]
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
|
|
|
|
+ if (GET_CODE (operands[2]) == CONST_INT)
|
|
|
|
|
+ operands[2] = GEN_INT (INTVAL (operands[2])
|
|
|
|
|
+ & (GET_MODE_BITSIZE (SImode) - 1));
|
|
|
|
|
+
|
|
|
|
|
+ return TARGET_64BIT ? "<insn>w\t%0,%1,%2" : "<insn>\t%0,%1,%2";
|
|
|
|
|
+}
|
|
|
|
|
+ [(set_attr "type" "shift")
|
|
|
|
|
+ (set_attr "mode" "SI")])
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "<optab>di3"
|
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand" "=r")
|
|
|
|
|
+ (any_shift:DI (match_operand:DI 1 "register_operand" "r")
|
|
|
|
|
+ (match_operand:DI 2 "arith_operand" "rI")))]
|
|
|
|
|
+ "TARGET_64BIT"
|
|
|
|
|
+{
|
|
|
|
|
+ if (GET_CODE (operands[2]) == CONST_INT)
|
|
|
|
|
+ operands[2] = GEN_INT (INTVAL (operands[2])
|
|
|
|
|
+ & (GET_MODE_BITSIZE (DImode) - 1));
|
|
|
|
|
+
|
|
|
|
|
+ return "<insn>\t%0,%1,%2";
|
|
|
|
|
+}
|
|
|
|
|
+ [(set_attr "type" "shift")
|
|
|
|
|
+ (set_attr "mode" "DI")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "*<optab>si3_extend"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (match_operand:DI 0 "register_operand" "=r")
|
|
|
|
|
+ (sign_extend:DI
|
|
|
|
|
+ (any_shift:SI (match_operand:SI 1 "register_operand" "r")
|
|
|
|
|
+ (match_operand:SI 2 "arith_operand" "rI"))))]
|
|
|
|
|
+ "TARGET_64BIT"
|
|
|
|
|
+{
|
|
|
|
|
+ if (GET_CODE (operands[2]) == CONST_INT)
|
|
|
|
|
+ operands[2] = GEN_INT (INTVAL (operands[2]) & 0x1f);
|
|
|
|
|
+
|
|
|
|
|
+ return "<insn>w\t%0,%1,%2";
|
|
|
|
|
+}
|
|
|
|
|
+ [(set_attr "type" "shift")
|
|
|
|
|
+ (set_attr "mode" "SI")])
|
|
|
|
|
+
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+;; CONDITIONAL BRANCHES
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+
|
|
|
|
|
+;; Conditional branches
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "*branch_order<mode>"
|
|
|
|
|
+ [(set (pc)
|
|
|
|
|
+ (if_then_else
|
|
|
|
|
+ (match_operator 1 "order_operator"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(match_operand:X 2 "register_operand" "r")
|
|
|
|
|
+ (match_operand:X 3 "register_operand" "r")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (label_ref (match_operand 0 "" ""))
|
|
|
|
|
+ (pc)))]
|
|
|
|
|
+ ""
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "b%C1\t%2,%3,%0"
|
|
|
|
|
+ [(set_attr "type" "branch")
|
|
|
|
|
+ (set_attr "mode" "none")])
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "*branch_zero<mode>"
|
|
|
|
|
+ [(set (pc)
|
|
|
|
|
+ (if_then_else
|
|
|
|
|
+ (match_operator 1 "signed_order_operator"
|
|
|
|
|
+ [(match_operand:X 2 "register_operand" "r")
|
|
|
|
|
+ (const_int 0)])
|
|
|
|
|
+ (label_ref (match_operand 0 "" ""))
|
|
|
|
|
+ (pc)))]
|
|
|
|
|
+ ""
|
|
|
|
|
+ "b%C1z\t%2,%0"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set_attr "type" "branch")
|
|
|
|
|
+ (set_attr "mode" "none")])
|
|
|
|
|
+
|
|
|
|
|
+;; Used to implement built-in functions.
|
|
|
|
|
+(define_expand "condjump"
|
|
|
|
|
+ [(set (pc)
|
|
|
|
|
+ (if_then_else (match_operand 0)
|
|
|
|
|
+ (label_ref (match_operand 1))
|
|
|
|
|
+ (pc)))])
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "cbranch<mode>4"
|
|
|
|
|
+ [(set (pc)
|
|
|
|
|
+ (if_then_else (match_operator 0 "comparison_operator"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(match_operand:BR 1 "register_operand")
|
|
|
|
|
+ (match_operand:BR 2 "nonmemory_operand")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (label_ref (match_operand 3 ""))
|
|
|
|
|
+ (pc)))]
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ riscv_expand_conditional_branch (operands[3], GET_CODE (operands[0]),
|
|
|
|
|
+ operands[1], operands[2]);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "cbranch<mode>4"
|
|
|
|
|
+ [(set (pc)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (if_then_else (match_operator 0 "fp_branch_comparison"
|
|
|
|
|
+ [(match_operand:ANYF 1 "register_operand")
|
|
|
|
|
+ (match_operand:ANYF 2 "register_operand")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (label_ref (match_operand 3 ""))
|
|
|
|
|
+ (pc)))]
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ riscv_expand_conditional_branch (operands[3], GET_CODE (operands[0]),
|
|
|
|
|
+ operands[1], operands[2]);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn_and_split "*branch_on_bit<X:mode>"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (pc)
|
|
|
|
|
+ (if_then_else
|
|
|
|
|
+ (match_operator 0 "equality_operator"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(zero_extract:X (match_operand:X 2 "register_operand" "r")
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (const_int 1)
|
|
|
|
|
+ (match_operand 3 "branch_on_bit_operand"))
|
|
|
|
|
+ (const_int 0)])
|
|
|
|
|
+ (label_ref (match_operand 1))
|
|
|
|
|
+ (pc)))
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (clobber (match_scratch:X 4 "=&r"))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
|
|
|
|
+ "#"
|
|
|
|
|
+ "reload_completed"
|
|
|
|
|
+ [(set (match_dup 4)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (ashift:X (match_dup 2) (match_dup 3)))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (set (pc)
|
|
|
|
|
+ (if_then_else
|
|
|
|
|
+ (match_op_dup 0 [(match_dup 4) (const_int 0)])
|
|
|
|
|
+ (label_ref (match_operand 1))
|
|
|
|
|
+ (pc)))]
|
|
|
|
|
+{
|
|
|
|
|
+ int shift = GET_MODE_BITSIZE (<MODE>mode) - 1 - INTVAL (operands[3]);
|
|
|
|
|
+ operands[3] = GEN_INT (shift);
|
|
|
|
|
+
|
|
|
|
|
+ if (GET_CODE (operands[0]) == EQ)
|
|
|
|
|
+ operands[0] = gen_rtx_GE (<MODE>mode, operands[4], const0_rtx);
|
|
|
|
|
+ else
|
|
|
|
|
+ operands[0] = gen_rtx_LT (<MODE>mode, operands[4], const0_rtx);
|
|
|
|
|
+})
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn_and_split "*branch_on_bit_range<X:mode>"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set (pc)
|
|
|
|
|
+ (if_then_else
|
|
|
|
|
+ (match_operator 0 "equality_operator"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(zero_extract:X (match_operand:X 2 "register_operand" "r")
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (match_operand 3 "branch_on_bit_operand")
|
|
|
|
|
+ (const_int 0))
|
|
|
|
|
+ (const_int 0)])
|
|
|
|
|
+ (label_ref (match_operand 1))
|
|
|
|
|
+ (pc)))
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (clobber (match_scratch:X 4 "=&r"))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
|
|
|
|
+ "#"
|
|
|
|
|
+ "reload_completed"
|
|
|
|
|
+ [(set (match_dup 4)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (ashift:X (match_dup 2) (match_dup 3)))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (set (pc)
|
|
|
|
|
+ (if_then_else
|
|
|
|
|
+ (match_op_dup 0 [(match_dup 4) (const_int 0)])
|
|
|
|
|
+ (label_ref (match_operand 1))
|
|
|
|
|
+ (pc)))]
|
|
|
|
|
+{
|
|
|
|
|
+ operands[3] = GEN_INT (GET_MODE_BITSIZE (<MODE>mode) - INTVAL (operands[3]));
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+;; SETTING A REGISTER FROM A COMPARISON
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+
|
|
|
|
|
+;; Destination is always set in SI mode.
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "cstore<mode>4"
|
|
|
|
|
+ [(set (match_operand:SI 0 "register_operand")
|
|
|
|
|
+ (match_operator:SI 1 "order_operator"
|
|
|
|
|
+ [(match_operand:GPR 2 "register_operand")
|
|
|
|
|
+ (match_operand:GPR 3 "nonmemory_operand")]))]
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ riscv_expand_int_scc (operands[0], GET_CODE (operands[1]), operands[2],
|
|
|
|
|
+ operands[3]);
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_expand "cstore<mode>4"
|
|
|
|
|
+ [(set (match_operand:SI 0 "register_operand")
|
|
|
|
|
+ (match_operator:SI 1 "fp_scc_comparison"
|
|
|
|
|
+ [(match_operand:ANYF 2 "register_operand")
|
|
|
|
|
+ (match_operand:ANYF 3 "register_operand")]))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ riscv_expand_float_scc (operands[0], GET_CODE (operands[1]), operands[2],
|
|
|
|
|
+ operands[3]);
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "*cstore<ANYF:mode><X:mode>4"
|
|
|
|
|
+ [(set (match_operand:X 0 "register_operand" "=r")
|
|
|
|
|
+ (match_operator:X 1 "fp_native_comparison"
|
|
|
|
|
+ [(match_operand:ANYF 2 "register_operand" "f")
|
|
|
|
|
+ (match_operand:ANYF 3 "register_operand" "f")]))]
|
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
|
|
|
|
+ "f%C1.<fmt>\t%0,%2,%3"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set_attr "type" "fcmp")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")])
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "f<quiet_pattern>_quiet<ANYF:mode><X:mode>4"
|
|
|
|
|
+ [(set (match_operand:X 0 "register_operand" "=r")
|
|
|
|
|
+ (unspec:X
|
|
|
|
|
+ [(match_operand:ANYF 1 "register_operand" "f")
|
|
|
|
|
+ (match_operand:ANYF 2 "register_operand" "f")]
|
|
|
|
|
+ QUIET_COMPARISON))
|
|
|
|
|
+ (clobber (match_scratch:X 3 "=&r"))]
|
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
|
|
|
|
+ "frflags\t%3\n\tf<quiet_pattern>.<fmt>\t%0,%1,%2\n\tfsflags %3"
|
|
|
|
|
+ [(set_attr "type" "fcmp")
|
|
|
|
|
+ (set_attr "mode" "<UNITMODE>")
|
|
|
|
|
+ (set (attr "length") (const_int 12))])
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "*seq_zero_<X:mode><GPR:mode>"
|
|
|
|
|
+ [(set (match_operand:GPR 0 "register_operand" "=r")
|
|
|
|
|
+ (eq:GPR (match_operand:X 1 "register_operand" "r")
|
|
|
|
|
+ (const_int 0)))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
|
|
|
|
+ "seqz\t%0,%1"
|
|
|
|
|
+ [(set_attr "type" "slt")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (set_attr "mode" "<X:MODE>")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "*sne_zero_<X:mode><GPR:mode>"
|
|
|
|
|
+ [(set (match_operand:GPR 0 "register_operand" "=r")
|
|
|
|
|
+ (ne:GPR (match_operand:X 1 "register_operand" "r")
|
|
|
|
|
+ (const_int 0)))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
|
|
|
|
+ "snez\t%0,%1"
|
|
|
|
|
+ [(set_attr "type" "slt")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (set_attr "mode" "<X:MODE>")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "*sgt<u>_<X:mode><GPR:mode>"
|
|
|
|
|
+ [(set (match_operand:GPR 0 "register_operand" "=r")
|
|
|
|
|
+ (any_gt:GPR (match_operand:X 1 "register_operand" "r")
|
|
|
|
|
+ (match_operand:X 2 "reg_or_0_operand" "rJ")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "sgt<u>\t%0,%1,%z2"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set_attr "type" "slt")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (set_attr "mode" "<X:MODE>")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "*sge<u>_<X:mode><GPR:mode>"
|
|
|
|
|
+ [(set (match_operand:GPR 0 "register_operand" "=r")
|
|
|
|
|
+ (any_ge:GPR (match_operand:X 1 "register_operand" "r")
|
|
|
|
|
+ (const_int 1)))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
|
|
|
|
+ "slt<u>\t%0,zero,%1"
|
|
|
|
|
+ [(set_attr "type" "slt")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (set_attr "mode" "<MODE>")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "*slt<u>_<X:mode><GPR:mode>"
|
|
|
|
|
+ [(set (match_operand:GPR 0 "register_operand" "=r")
|
|
|
|
|
+ (any_lt:GPR (match_operand:X 1 "register_operand" "r")
|
|
|
|
|
+ (match_operand:X 2 "arith_operand" "rI")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
|
|
|
|
+ "slt<u>\t%0,%1,%2"
|
|
|
|
|
+ [(set_attr "type" "slt")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (set_attr "mode" "<MODE>")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "*sle<u>_<X:mode><GPR:mode>"
|
|
|
|
|
+ [(set (match_operand:GPR 0 "register_operand" "=r")
|
|
|
|
|
+ (any_le:GPR (match_operand:X 1 "register_operand" "r")
|
|
|
|
|
+ (match_operand:X 2 "sle_operand" "")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
|
|
|
|
+{
|
|
|
|
|
+ operands[2] = GEN_INT (INTVAL (operands[2]) + 1);
|
|
|
|
|
+ return "slt<u>\t%0,%1,%2";
|
|
|
|
|
+}
|
|
|
|
|
+ [(set_attr "type" "slt")
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (set_attr "mode" "<MODE>")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+;; UNCONDITIONAL BRANCHES
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+
|
|
|
|
|
+;; Unconditional branches.
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "jump"
|
|
|
|
|
+ [(set (pc)
|
|
|
|
|
+ (label_ref (match_operand 0 "" "")))]
|
|
|
|
|
+ ""
|
|
|
|
|
+ "j\t%l0"
|
|
|
|
|
+ [(set_attr "type" "jump")
|
|
|
|
|
+ (set_attr "mode" "none")])
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "indirect_jump"
|
|
|
|
|
+ [(set (pc) (match_operand 0 "register_operand"))]
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
|
|
|
|
+ operands[0] = force_reg (Pmode, operands[0]);
|
|
|
|
|
+ if (Pmode == SImode)
|
|
|
|
|
+ emit_jump_insn (gen_indirect_jumpsi (operands[0]));
|
|
|
|
|
+ else
|
|
|
|
|
+ emit_jump_insn (gen_indirect_jumpdi (operands[0]));
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "indirect_jump<mode>"
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ [(set (pc) (match_operand:P 0 "register_operand" "l"))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
|
|
|
|
+ "jr\t%0"
|
|
|
|
|
+ [(set_attr "type" "jump")
|
|
|
|
|
+ (set_attr "mode" "none")])
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "tablejump"
|
|
|
|
|
+ [(set (pc) (match_operand 0 "register_operand" ""))
|
|
|
|
|
+ (use (label_ref (match_operand 1 "" "")))]
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
|
|
|
|
+ if (CASE_VECTOR_PC_RELATIVE)
|
|
|
|
|
+ operands[0] = expand_simple_binop (Pmode, PLUS, operands[0],
|
|
|
|
|
+ gen_rtx_LABEL_REF (Pmode, operands[1]),
|
|
|
|
|
+ NULL_RTX, 0, OPTAB_DIRECT);
|
|
|
|
|
+
|
|
|
|
|
+ if (CASE_VECTOR_PC_RELATIVE && Pmode == DImode)
|
|
|
|
|
+ emit_jump_insn (gen_tablejumpdi (operands[0], operands[1]));
|
|
|
|
|
+ else
|
|
|
|
|
+ emit_jump_insn (gen_tablejumpsi (operands[0], operands[1]));
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "tablejump<mode>"
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ [(set (pc) (match_operand:GPR 0 "register_operand" "l"))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (use (label_ref (match_operand 1 "" "")))]
|
|
|
|
|
+ ""
|
|
|
|
|
+ "jr\t%0"
|
|
|
|
|
+ [(set_attr "type" "jump")
|
|
|
|
|
+ (set_attr "mode" "none")])
|
|
|
|
|
+
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+;; Function prologue/epilogue
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "prologue"
|
|
|
|
|
+ [(const_int 1)]
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
|
|
|
|
+ riscv_expand_prologue ();
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+;; Block any insns from being moved before this point, since the
|
|
|
|
|
+;; profiling call to mcount can use various registers that aren't
|
|
|
|
|
+;; saved or used to pass arguments.
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "blockage"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE)]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
|
|
|
|
+ ""
|
|
|
|
|
+ [(set_attr "type" "ghost")
|
|
|
|
|
+ (set_attr "mode" "none")])
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "epilogue"
|
|
|
|
|
+ [(const_int 2)]
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
|
|
|
|
+ riscv_expand_epilogue (false);
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "sibcall_epilogue"
|
|
|
|
|
+ [(const_int 2)]
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
|
|
|
|
+ riscv_expand_epilogue (true);
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+;; Trivial return. Make it look like a normal return insn as that
|
|
|
|
|
+;; allows jump optimizations to work better.
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "return"
|
|
|
|
|
+ [(simple_return)]
|
|
|
|
|
+ "riscv_can_use_return_insn ()"
|
|
|
|
|
+ "")
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "simple_return"
|
|
|
|
|
+ [(simple_return)]
|
|
|
|
|
+ ""
|
|
|
|
|
+ "ret"
|
|
|
|
|
+ [(set_attr "type" "jump")
|
|
|
|
|
+ (set_attr "mode" "none")])
|
|
|
|
|
+
|
|
|
|
|
+;; Normal return.
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "simple_return_internal"
|
|
|
|
|
+ [(simple_return)
|
|
|
|
|
+ (use (match_operand 0 "pmode_register_operand" ""))]
|
|
|
|
|
+ ""
|
|
|
|
|
+ "jr\t%0"
|
|
|
|
|
+ [(set_attr "type" "jump")
|
|
|
|
|
+ (set_attr "mode" "none")])
|
|
|
|
|
+
|
|
|
|
|
+;; This is used in compiling the unwind routines.
|
|
|
|
|
+(define_expand "eh_return"
|
|
|
|
|
+ [(use (match_operand 0 "general_operand"))]
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
|
|
|
|
+ if (GET_MODE (operands[0]) != word_mode)
|
|
|
|
|
+ operands[0] = convert_to_mode (word_mode, operands[0], 0);
|
|
|
|
|
+ if (TARGET_64BIT)
|
|
|
|
|
+ emit_insn (gen_eh_set_lr_di (operands[0]));
|
|
|
|
|
+ else
|
|
|
|
|
+ emit_insn (gen_eh_set_lr_si (operands[0]));
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+;; Clobber the return address on the stack. We can't expand this
|
|
|
|
|
+;; until we know where it will be put in the stack frame.
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "eh_set_lr_si"
|
|
|
|
|
+ [(unspec [(match_operand:SI 0 "register_operand" "r")] UNSPEC_EH_RETURN)
|
|
|
|
|
+ (clobber (match_scratch:SI 1 "=&r"))]
|
|
|
|
|
+ "! TARGET_64BIT"
|
|
|
|
|
+ "#")
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "eh_set_lr_di"
|
|
|
|
|
+ [(unspec [(match_operand:DI 0 "register_operand" "r")] UNSPEC_EH_RETURN)
|
|
|
|
|
+ (clobber (match_scratch:DI 1 "=&r"))]
|
|
|
|
|
+ "TARGET_64BIT"
|
|
|
|
|
+ "#")
|
|
|
|
|
+
|
|
|
|
|
+(define_split
|
|
|
|
|
+ [(unspec [(match_operand 0 "register_operand")] UNSPEC_EH_RETURN)
|
|
|
|
|
+ (clobber (match_scratch 1))]
|
|
|
|
|
+ "reload_completed"
|
|
|
|
|
+ [(const_int 0)]
|
|
|
|
|
+{
|
|
|
|
|
+ riscv_set_return_address (operands[0], operands[1]);
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+;;
|
|
|
|
|
+;; FUNCTION CALLS
|
|
|
|
|
+;;
|
|
|
|
|
+;; ....................
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "sibcall"
|
|
|
|
|
+ [(parallel [(call (match_operand 0 "")
|
|
|
|
|
+ (match_operand 1 ""))
|
|
|
|
|
+ (use (match_operand 2 "")) ;; next_arg_reg
|
|
|
|
|
+ (use (match_operand 3 ""))])] ;; struct_value_size_rtx
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ rtx target = riscv_legitimize_call_address (XEXP (operands[0], 0));
|
|
|
|
|
+ emit_call_insn (gen_sibcall_internal (target, operands[1]));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "sibcall_internal"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(call (mem:SI (match_operand 0 "call_insn_operand" "j,S,U"))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (match_operand 1 "" ""))]
|
|
|
|
|
+ "SIBLING_CALL_P (insn)"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "@
|
|
|
|
|
+ jr\t%0
|
|
|
|
|
+ tail\t%0
|
|
|
|
|
+ tail\t%0@plt"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set_attr "type" "call")])
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "sibcall_value"
|
|
|
|
|
+ [(parallel [(set (match_operand 0 "")
|
|
|
|
|
+ (call (match_operand 1 "")
|
|
|
|
|
+ (match_operand 2 "")))
|
|
|
|
|
+ (use (match_operand 3 ""))])] ;; next_arg_reg
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ rtx target = riscv_legitimize_call_address (XEXP (operands[1], 0));
|
|
|
|
|
+ emit_call_insn (gen_sibcall_value_internal (operands[0], target, operands[2]));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "sibcall_value_internal"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(set (match_operand 0 "" "")
|
|
|
|
|
+ (call (mem:SI (match_operand 1 "call_insn_operand" "j,S,U"))
|
|
|
|
|
+ (match_operand 2 "" "")))]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ "SIBLING_CALL_P (insn)"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "@
|
|
|
|
|
+ jr\t%1
|
|
|
|
|
+ tail\t%1
|
|
|
|
|
+ tail\t%1@plt"
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ [(set_attr "type" "call")])
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "call"
|
|
|
|
|
+ [(parallel [(call (match_operand 0 "")
|
|
|
|
|
+ (match_operand 1 ""))
|
|
|
|
|
+ (use (match_operand 2 "")) ;; next_arg_reg
|
|
|
|
|
+ (use (match_operand 3 ""))])] ;; struct_value_size_rtx
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ rtx target = riscv_legitimize_call_address (XEXP (operands[0], 0));
|
|
|
|
|
+ emit_call_insn (gen_call_internal (target, operands[1]));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "call_internal"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(call (mem:SI (match_operand 0 "call_insn_operand" "l,S,U"))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (match_operand 1 "" ""))
|
|
|
|
|
+ (clobber (reg:SI RETURN_ADDR_REGNUM))]
|
|
|
|
|
+ ""
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "@
|
|
|
|
|
+ jalr\t%0
|
|
|
|
|
+ call\t%0
|
|
|
|
|
+ call\t%0@plt"
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ [(set_attr "type" "call")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+(define_expand "call_value"
|
|
|
|
|
+ [(parallel [(set (match_operand 0 "")
|
|
|
|
|
+ (call (match_operand 1 "")
|
|
|
|
|
+ (match_operand 2 "")))
|
|
|
|
|
+ (use (match_operand 3 ""))])] ;; next_arg_reg
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ rtx target = riscv_legitimize_call_address (XEXP (operands[1], 0));
|
|
|
|
|
+ emit_call_insn (gen_call_value_internal (operands[0], target, operands[2]));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "call_value_internal"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(set (match_operand 0 "" "")
|
|
|
|
|
+ (call (mem:SI (match_operand 1 "call_insn_operand" "l,S,U"))
|
|
|
|
|
+ (match_operand 2 "" "")))
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (clobber (reg:SI RETURN_ADDR_REGNUM))]
|
|
|
|
|
+ ""
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "@
|
|
|
|
|
+ jalr\t%1
|
|
|
|
|
+ call\t%1
|
|
|
|
|
+ call\t%1@plt"
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ [(set_attr "type" "call")])
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+;; Call subroutine returning any type.
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "untyped_call"
|
|
|
|
|
+ [(parallel [(call (match_operand 0 "")
|
|
|
|
|
+ (const_int 0))
|
|
|
|
|
+ (match_operand 1 "")
|
|
|
|
|
+ (match_operand 2 "")])]
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
|
|
|
|
+ int i;
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ emit_call_insn (gen_call (operands[0], const0_rtx, NULL, const0_rtx));
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+ for (i = 0; i < XVECLEN (operands[2], 0); i++)
|
|
|
|
|
+ {
|
|
|
|
|
+ rtx set = XVECEXP (operands[2], 0, i);
|
|
|
|
|
+ riscv_emit_move (SET_DEST (set), SET_SRC (set));
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ emit_insn (gen_blockage ());
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "nop"
|
|
|
|
|
+ [(const_int 0)]
|
|
|
|
|
+ ""
|
|
|
|
|
+ "nop"
|
|
|
|
|
+ [(set_attr "type" "nop")
|
|
|
|
|
+ (set_attr "mode" "none")])
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "trap"
|
|
|
|
|
+ [(trap_if (const_int 1) (const_int 0))]
|
|
|
|
|
+ ""
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "ebreak")
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+(define_insn "gpr_save"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(unspec_volatile [(match_operand 0 "const_int_operand")] UNSPECV_GPR_SAVE)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ (clobber (reg:SI T0_REGNUM))
|
|
|
|
|
+ (clobber (reg:SI T1_REGNUM))]
|
|
|
|
|
+ ""
|
|
|
|
|
+ { return riscv_output_gpr_save (INTVAL (operands[0])); })
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "gpr_restore"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ [(unspec_volatile [(match_operand 0 "const_int_operand")] UNSPECV_GPR_RESTORE)]
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ""
|
|
|
|
|
+ "tail\t__riscv_restore_%0")
|
|
|
|
|
+
|
|
|
|
|
+(define_insn "gpr_restore_return"
|
|
|
|
|
+ [(return)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (use (match_operand 0 "pmode_register_operand" ""))
|
|
|
|
|
+ (const_int 0)]
|
|
|
|
|
+ ""
|
|
|
|
|
+ "")
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "riscv_frflags"
|
|
|
|
|
+ [(set (match_operand:SI 0 "register_operand" "=r")
|
|
|
|
|
+ (unspec_volatile [(const_int 0)] UNSPECV_FRFLAGS))]
|
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
|
|
|
|
+ "frflags %0")
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "riscv_fsflags"
|
|
|
|
|
+ [(unspec_volatile [(match_operand:SI 0 "csr_operand" "rK")] UNSPECV_FSFLAGS)]
|
|
|
|
|
+ "TARGET_HARD_FLOAT"
|
|
|
|
|
+ "fsflags %0")
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(define_insn "stack_tie<mode>"
|
|
|
|
|
+ [(set (mem:BLK (scratch))
|
|
|
|
|
+ (unspec:BLK [(match_operand:X 0 "register_operand" "r")
|
|
|
|
|
+ (match_operand:X 1 "register_operand" "r")]
|
|
|
|
|
+ UNSPEC_TIE))]
|
|
|
|
|
+ ""
|
|
|
|
|
+ ""
|
|
|
|
|
+ [(set_attr "length" "0")]
|
|
|
|
|
+)
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+(include "sync.md")
|
|
|
|
|
+(include "peephole.md")
|
|
|
|
|
+(include "pic.md")
|
|
|
|
|
+(include "generic.md")
|
|
|
|
|
diff --git original-gcc/gcc/config/riscv/riscv.opt gcc-6.3.0/gcc/config/riscv/riscv.opt
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..0466bb29d14
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/riscv.opt
|
|
|
|
|
@@ -0,0 +1,111 @@
|
|
|
|
|
+; Options for the RISC-V port of the compiler
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+;
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+; Copyright (C) 2011-2017 Free Software Foundation, Inc.
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+;
|
|
|
|
|
+; This file is part of GCC.
|
|
|
|
|
+;
|
|
|
|
|
+; GCC is free software; you can redistribute it and/or modify it under
|
|
|
|
|
+; the terms of the GNU General Public License as published by the Free
|
|
|
|
|
+; Software Foundation; either version 3, or (at your option) any later
|
|
|
|
|
+; version.
|
|
|
|
|
+;
|
|
|
|
|
+; GCC is distributed in the hope that it will be useful, but WITHOUT
|
|
|
|
|
+; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
|
|
|
+; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
|
|
|
|
|
+; License for more details.
|
|
|
|
|
+;
|
|
|
|
|
+; You should have received a copy of the GNU General Public License
|
|
|
|
|
+; along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+; <http://www.gnu.org/licenses/>.
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+HeaderInclude
|
|
|
|
|
+config/riscv/riscv-opts.h
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+mbranch-cost=
|
|
|
|
|
+Target RejectNegative Joined UInteger Var(riscv_branch_cost)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+-mbranch-cost=N Set the cost of branches to roughly N instructions.
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+mplt
|
|
|
|
|
+Target Report Var(TARGET_PLT) Init(1)
|
|
|
|
|
+When generating -fpic code, allow the use of PLTs. Ignored for fno-pic.
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+mabi=
|
|
|
|
|
+Target Report RejectNegative Joined Enum(abi_type) Var(riscv_abi) Init(ABI_ILP32)
|
|
|
|
|
+Specify integer and floating-point calling convention.
|
|
|
|
|
+
|
|
|
|
|
+Enum
|
|
|
|
|
+Name(abi_type) Type(enum riscv_abi_type)
|
|
|
|
|
+Supported ABIs (for use with the -mabi= option):
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+EnumValue
|
|
|
|
|
+Enum(abi_type) String(ilp32) Value(ABI_ILP32)
|
|
|
|
|
+
|
|
|
|
|
+EnumValue
|
|
|
|
|
+Enum(abi_type) String(ilp32f) Value(ABI_ILP32F)
|
|
|
|
|
+
|
|
|
|
|
+EnumValue
|
|
|
|
|
+Enum(abi_type) String(ilp32d) Value(ABI_ILP32D)
|
|
|
|
|
+
|
|
|
|
|
+EnumValue
|
|
|
|
|
+Enum(abi_type) String(lp64) Value(ABI_LP64)
|
|
|
|
|
+
|
|
|
|
|
+EnumValue
|
|
|
|
|
+Enum(abi_type) String(lp64f) Value(ABI_LP64F)
|
|
|
|
|
+
|
|
|
|
|
+EnumValue
|
|
|
|
|
+Enum(abi_type) String(lp64d) Value(ABI_LP64D)
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+mfdiv
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+Target Report Mask(FDIV)
|
|
|
|
|
+Use hardware floating-point divide and square root instructions.
|
|
|
|
|
+
|
|
|
|
|
+mdiv
|
|
|
|
|
+Target Report Mask(DIV)
|
|
|
|
|
+Use hardware instructions for integer division.
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+march=
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+Target Report RejectNegative Joined
|
|
|
|
|
+-march= Generate code for given RISC-V ISA (e.g. RV64IM). ISA strings must be
|
|
|
|
|
+lower-case.
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+mtune=
|
|
|
|
|
+Target RejectNegative Joined Var(riscv_tune_string)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+-mtune=PROCESSOR Optimize the output for PROCESSOR.
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+msmall-data-limit=
|
|
|
|
|
+Target Joined Separate UInteger Var(g_switch_value) Init(8)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+-msmall-data-limit=N Put global and static data smaller than <number> bytes into a special section (on some targets).
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+msave-restore
|
|
|
|
|
+Target Report Mask(SAVE_RESTORE)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+Use smaller but slower prologue and epilogue code.
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+mcmodel=
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+Target Report RejectNegative Joined Enum(code_model) Var(riscv_cmodel) Init(TARGET_DEFAULT_CMODEL)
|
|
|
|
|
+Specify the code model.
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+Enum
|
|
|
|
|
+Name(code_model) Type(enum riscv_code_model)
|
|
|
|
|
+Known code models (for use with the -mcmodel= option):
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+EnumValue
|
|
|
|
|
+Enum(code_model) String(medlow) Value(CM_MEDLOW)
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+EnumValue
|
|
|
|
|
+Enum(code_model) String(medany) Value(CM_MEDANY)
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+mexplicit-relocs
|
|
|
|
|
+Target Report Mask(EXPLICIT_RELOCS)
|
|
|
|
|
+Use %reloc() operators, rather than assembly macros, to load addresses.
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+Mask(64BIT)
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+Mask(MUL)
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+Mask(ATOMIC)
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+Mask(HARD_FLOAT)
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+Mask(DOUBLE_FLOAT)
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+Mask(RVC)
|
|
|
|
|
diff --git original-gcc/gcc/config/riscv/sync.md gcc-6.3.0/gcc/config/riscv/sync.md
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..09970b9f36b
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/sync.md
|
|
|
|
|
@@ -0,0 +1,194 @@
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+;; Machine description for RISC-V atomic operations.
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; Copyright (C) 2011-2017 Free Software Foundation, Inc.
|
|
|
|
|
+;; Contributed by Andrew Waterman (andrew@sifive.com).
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+;; Based on MIPS target for GNU compiler.
|
|
|
|
|
+
|
|
|
|
|
+;; This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+;; GCC is free software; you can redistribute it and/or modify
|
|
|
|
|
+;; it under the terms of the GNU General Public License as published by
|
|
|
|
|
+;; the Free Software Foundation; either version 3, or (at your option)
|
|
|
|
|
+;; any later version.
|
|
|
|
|
+
|
|
|
|
|
+;; GCC is distributed in the hope that it will be useful,
|
|
|
|
|
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
+;; GNU General Public License for more details.
|
|
|
|
|
+
|
|
|
|
|
+;; You should have received a copy of the GNU General Public License
|
|
|
|
|
+;; along with GCC; see the file COPYING3. If not see
|
|
|
|
|
+;; <http://www.gnu.org/licenses/>.
|
|
|
|
|
+
|
|
|
|
|
+(define_c_enum "unspec" [
|
|
|
|
|
+ UNSPEC_COMPARE_AND_SWAP
|
|
|
|
|
+ UNSPEC_SYNC_OLD_OP
|
|
|
|
|
+ UNSPEC_SYNC_EXCHANGE
|
|
|
|
|
+ UNSPEC_ATOMIC_STORE
|
|
|
|
|
+ UNSPEC_MEMORY_BARRIER
|
|
|
|
|
+])
|
|
|
|
|
+
|
|
|
|
|
+(define_code_iterator any_atomic [plus ior xor and])
|
|
|
|
|
+(define_code_attr atomic_optab
|
|
|
|
|
+ [(plus "add") (ior "or") (xor "xor") (and "and")])
|
|
|
|
|
+
|
|
|
|
|
+;; Memory barriers.
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "mem_thread_fence"
|
|
|
|
|
+ [(match_operand:SI 0 "const_int_operand" "")] ;; model
|
|
|
|
|
+ ""
|
|
|
|
|
+{
|
|
|
|
|
+ if (INTVAL (operands[0]) != MEMMODEL_RELAXED)
|
|
|
|
|
+ {
|
|
|
|
|
+ rtx mem = gen_rtx_MEM (BLKmode, gen_rtx_SCRATCH (Pmode));
|
|
|
|
|
+ MEM_VOLATILE_P (mem) = 1;
|
|
|
|
|
+ emit_insn (gen_mem_thread_fence_1 (mem, operands[0]));
|
|
|
|
|
+ }
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+;; Until the RISC-V memory model (hence its mapping from C++) is finalized,
|
|
|
|
|
+;; conservatively emit a full FENCE.
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+(define_insn "mem_thread_fence_1"
|
|
|
|
|
+ [(set (match_operand:BLK 0 "" "")
|
|
|
|
|
+ (unspec:BLK [(match_dup 0)] UNSPEC_MEMORY_BARRIER))
|
|
|
|
|
+ (match_operand:SI 1 "const_int_operand" "")] ;; model
|
|
|
|
|
+ ""
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "fence\trw,rw")
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+;; Atomic memory operations.
|
|
|
|
|
+
|
|
|
|
|
+;; Implement atomic stores with amoswap. Fall back to fences for atomic loads.
|
|
|
|
|
+(define_insn "atomic_store<mode>"
|
|
|
|
|
+ [(set (match_operand:GPR 0 "memory_operand" "=A")
|
|
|
|
|
+ (unspec_volatile:GPR
|
|
|
|
|
+ [(match_operand:GPR 1 "reg_or_0_operand" "rJ")
|
|
|
|
|
+ (match_operand:SI 2 "const_int_operand")] ;; model
|
|
|
|
|
+ UNSPEC_ATOMIC_STORE))]
|
|
|
|
|
+ "TARGET_ATOMIC"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "%F2amoswap.<amo>%A2 zero,%z1,%0"
|
|
|
|
|
+ [(set (attr "length") (const_int 8))])
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+(define_insn "atomic_<atomic_optab><mode>"
|
|
|
|
|
+ [(set (match_operand:GPR 0 "memory_operand" "+A")
|
|
|
|
|
+ (unspec_volatile:GPR
|
|
|
|
|
+ [(any_atomic:GPR (match_dup 0)
|
|
|
|
|
+ (match_operand:GPR 1 "reg_or_0_operand" "rJ"))
|
|
|
|
|
+ (match_operand:SI 2 "const_int_operand")] ;; model
|
|
|
|
|
+ UNSPEC_SYNC_OLD_OP))]
|
|
|
|
|
+ "TARGET_ATOMIC"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "%F2amo<insn>.<amo>%A2 zero,%z1,%0"
|
|
|
|
|
+ [(set (attr "length") (const_int 8))])
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+(define_insn "atomic_fetch_<atomic_optab><mode>"
|
|
|
|
|
+ [(set (match_operand:GPR 0 "register_operand" "=&r")
|
|
|
|
|
+ (match_operand:GPR 1 "memory_operand" "+A"))
|
|
|
|
|
+ (set (match_dup 1)
|
|
|
|
|
+ (unspec_volatile:GPR
|
|
|
|
|
+ [(any_atomic:GPR (match_dup 1)
|
|
|
|
|
+ (match_operand:GPR 2 "reg_or_0_operand" "rJ"))
|
|
|
|
|
+ (match_operand:SI 3 "const_int_operand")] ;; model
|
|
|
|
|
+ UNSPEC_SYNC_OLD_OP))]
|
|
|
|
|
+ "TARGET_ATOMIC"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "%F3amo<insn>.<amo>%A3 %0,%z2,%1"
|
|
|
|
|
+ [(set (attr "length") (const_int 8))])
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+(define_insn "atomic_exchange<mode>"
|
|
|
|
|
+ [(set (match_operand:GPR 0 "register_operand" "=&r")
|
|
|
|
|
+ (unspec_volatile:GPR
|
|
|
|
|
+ [(match_operand:GPR 1 "memory_operand" "+A")
|
|
|
|
|
+ (match_operand:SI 3 "const_int_operand")] ;; model
|
|
|
|
|
+ UNSPEC_SYNC_EXCHANGE))
|
|
|
|
|
+ (set (match_dup 1)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ (match_operand:GPR 2 "register_operand" "0"))]
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ "TARGET_ATOMIC"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "%F3amoswap.<amo>%A3 %0,%z2,%1"
|
|
|
|
|
+ [(set (attr "length") (const_int 8))])
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+(define_insn "atomic_cas_value_strong<mode>"
|
|
|
|
|
+ [(set (match_operand:GPR 0 "register_operand" "=&r")
|
|
|
|
|
+ (match_operand:GPR 1 "memory_operand" "+A"))
|
|
|
|
|
+ (set (match_dup 1)
|
|
|
|
|
+ (unspec_volatile:GPR [(match_operand:GPR 2 "reg_or_0_operand" "rJ")
|
|
|
|
|
+ (match_operand:GPR 3 "reg_or_0_operand" "rJ")
|
|
|
|
|
+ (match_operand:SI 4 "const_int_operand") ;; mod_s
|
|
|
|
|
+ (match_operand:SI 5 "const_int_operand")] ;; mod_f
|
|
|
|
|
+ UNSPEC_COMPARE_AND_SWAP))
|
|
|
|
|
+ (clobber (match_scratch:GPR 6 "=&r"))]
|
|
|
|
|
+ "TARGET_ATOMIC"
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ "%F5 1: lr.<amo>%A5 %0,%1; bne %0,%z2,1f; sc.<amo>%A4 %6,%z3,%1; bnez %6,1b; 1:"
|
|
|
|
|
+ [(set (attr "length") (const_int 20))])
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+(define_expand "atomic_compare_and_swap<mode>"
|
|
|
|
|
+ [(match_operand:SI 0 "register_operand" "") ;; bool output
|
|
|
|
|
+ (match_operand:GPR 1 "register_operand" "") ;; val output
|
|
|
|
|
+ (match_operand:GPR 2 "memory_operand" "") ;; memory
|
|
|
|
|
+ (match_operand:GPR 3 "reg_or_0_operand" "") ;; expected value
|
|
|
|
|
+ (match_operand:GPR 4 "reg_or_0_operand" "") ;; desired value
|
|
|
|
|
+ (match_operand:SI 5 "const_int_operand" "") ;; is_weak
|
|
|
|
|
+ (match_operand:SI 6 "const_int_operand" "") ;; mod_s
|
|
|
|
|
+ (match_operand:SI 7 "const_int_operand" "")] ;; mod_f
|
|
|
|
|
+ "TARGET_ATOMIC"
|
|
|
|
|
+{
|
|
|
|
|
+ emit_insn (gen_atomic_cas_value_strong<mode> (operands[1], operands[2],
|
|
|
|
|
+ operands[3], operands[4],
|
|
|
|
|
+ operands[6], operands[7]));
|
|
|
|
|
+
|
|
|
|
|
+ rtx compare = operands[1];
|
|
|
|
|
+ if (operands[3] != const0_rtx)
|
|
|
|
|
+ {
|
|
|
|
|
+ rtx difference = gen_rtx_MINUS (<MODE>mode, operands[1], operands[3]);
|
|
|
|
|
+ compare = gen_reg_rtx (<MODE>mode);
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ emit_insn (gen_rtx_SET (compare, difference));
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ }
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ if (word_mode != <MODE>mode)
|
|
|
|
|
+ {
|
|
|
|
|
+ rtx reg = gen_reg_rtx (word_mode);
|
|
|
|
|
+ emit_insn (gen_rtx_SET (reg, gen_rtx_SIGN_EXTEND (word_mode, compare)));
|
|
|
|
|
+ compare = reg;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ emit_insn (gen_rtx_SET (operands[0], gen_rtx_EQ (SImode, compare, const0_rtx)));
|
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
|
|
|
|
+
|
|
|
|
|
+(define_expand "atomic_test_and_set"
|
|
|
|
|
+ [(match_operand:QI 0 "register_operand" "") ;; bool output
|
|
|
|
|
+ (match_operand:QI 1 "memory_operand" "+A") ;; memory
|
|
|
|
|
+ (match_operand:SI 2 "const_int_operand" "")] ;; model
|
|
|
|
|
+ "TARGET_ATOMIC"
|
|
|
|
|
+{
|
|
|
|
|
+ /* We have no QImode atomics, so use the address LSBs to form a mask,
|
|
|
|
|
+ then use an aligned SImode atomic. */
|
|
|
|
|
+ rtx result = operands[0];
|
|
|
|
|
+ rtx mem = operands[1];
|
|
|
|
|
+ rtx model = operands[2];
|
|
|
|
|
+ rtx addr = force_reg (Pmode, XEXP (mem, 0));
|
|
|
|
|
+
|
|
|
|
|
+ rtx aligned_addr = gen_reg_rtx (Pmode);
|
|
|
|
|
+ emit_move_insn (aligned_addr, gen_rtx_AND (Pmode, addr, GEN_INT (-4)));
|
|
|
|
|
+
|
|
|
|
|
+ rtx aligned_mem = change_address (mem, SImode, aligned_addr);
|
|
|
|
|
+ set_mem_alias_set (aligned_mem, 0);
|
|
|
|
|
+
|
|
|
|
|
+ rtx offset = gen_reg_rtx (SImode);
|
|
|
|
|
+ emit_move_insn (offset, gen_rtx_AND (SImode, gen_lowpart (SImode, addr),
|
|
|
|
|
+ GEN_INT (3)));
|
|
|
|
|
+
|
|
|
|
|
+ rtx tmp = gen_reg_rtx (SImode);
|
|
|
|
|
+ emit_move_insn (tmp, GEN_INT (1));
|
|
|
|
|
+
|
|
|
|
|
+ rtx shmt = gen_reg_rtx (SImode);
|
|
|
|
|
+ emit_move_insn (shmt, gen_rtx_ASHIFT (SImode, offset, GEN_INT (3)));
|
|
|
|
|
+
|
|
|
|
|
+ rtx word = gen_reg_rtx (SImode);
|
|
|
|
|
+ emit_move_insn (word, gen_rtx_ASHIFT (SImode, tmp, shmt));
|
|
|
|
|
+
|
|
|
|
|
+ tmp = gen_reg_rtx (SImode);
|
|
|
|
|
+ emit_insn (gen_atomic_fetch_orsi (tmp, aligned_mem, word, model));
|
|
|
|
|
+
|
|
|
|
|
+ emit_move_insn (gen_lowpart (SImode, result),
|
|
|
|
|
+ gen_rtx_LSHIFTRT (SImode, tmp,
|
|
|
|
|
+ gen_lowpart (SImode, shmt)));
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ DONE;
|
|
|
|
|
+})
|
2016-10-29 17:37:42 +02:00
|
|
|
|
diff --git original-gcc/gcc/config/riscv/t-elf-multilib gcc-6.3.0/gcc/config/riscv/t-elf-multilib
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..6a39ece03bd
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/t-elf-multilib
|
|
|
|
|
@@ -0,0 +1,6 @@
|
|
|
|
|
+# This file was generated by multilib-generator with the command:
|
|
|
|
|
+# ./multilib-generator rv32i-ilp32--c rv32im-ilp32--c rv32iac-ilp32-- rv32imac-ilp32-- rv32imafc-ilp32f-rv32imafdc- rv64imac-lp64-- rv64imafdc-lp64d--
|
|
|
|
|
+MULTILIB_OPTIONS = march=rv32i/march=rv32ic/march=rv32im/march=rv32imc/march=rv32iac/march=rv32imac/march=rv32imafc/march=rv32imafdc/march=rv32gc/march=rv64imac/march=rv64imafdc/march=rv64gc mabi=ilp32/mabi=ilp32f/mabi=lp64/mabi=lp64d
|
|
|
|
|
+MULTILIB_DIRNAMES = rv32i rv32ic rv32im rv32imc rv32iac rv32imac rv32imafc rv32imafdc rv32gc rv64imac rv64imafdc rv64gc ilp32 ilp32f lp64 lp64d
|
|
|
|
|
+MULTILIB_REQUIRED = march=rv32i/mabi=ilp32 march=rv32im/mabi=ilp32 march=rv32iac/mabi=ilp32 march=rv32imac/mabi=ilp32 march=rv32imafc/mabi=ilp32f march=rv64imac/mabi=lp64 march=rv64imafdc/mabi=lp64d
|
|
|
|
|
+MULTILIB_REUSE = march.rv32i/mabi.ilp32=march.rv32ic/mabi.ilp32 march.rv32im/mabi.ilp32=march.rv32imc/mabi.ilp32 march.rv32imafc/mabi.ilp32f=march.rv32imafdc/mabi.ilp32f march.rv32imafc/mabi.ilp32f=march.rv32gc/mabi.ilp32f march.rv64imafdc/mabi.lp64d=march.rv64gc/mabi.lp64d
|
|
|
|
|
diff --git original-gcc/gcc/config/riscv/t-linux gcc-6.3.0/gcc/config/riscv/t-linux
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..216d2776a18
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/t-linux
|
|
|
|
|
@@ -0,0 +1,3 @@
|
|
|
|
|
+# Only XLEN and ABI affect Linux multilib dir names, e.g. /lib32/ilp32d/
|
|
|
|
|
+MULTILIB_DIRNAMES := $(patsubst rv32%,lib32,$(patsubst rv64%,lib64,$(MULTILIB_DIRNAMES)))
|
|
|
|
|
+MULTILIB_OSDIRNAMES := $(patsubst lib%,../lib%,$(MULTILIB_DIRNAMES))
|
|
|
|
|
diff --git original-gcc/gcc/config/riscv/t-linux-multilib gcc-6.3.0/gcc/config/riscv/t-linux-multilib
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..e94d4da5212
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/t-linux-multilib
|
|
|
|
|
@@ -0,0 +1,6 @@
|
|
|
|
|
+# This file was generated by multilib-generator with the command:
|
|
|
|
|
+# ./multilib-generator rv32imac-ilp32-rv32ima,rv32imaf,rv32imafd,rv32imafc,rv32imafdc- rv32imafdc-ilp32d-rv32imafd- rv64imac-lp64-rv64ima,rv64imaf,rv64imafd,rv64imafc,rv64imafdc- rv64imafdc-lp64d-rv64imafd-
|
|
|
|
|
+MULTILIB_OPTIONS = march=rv32imac/march=rv32ima/march=rv32imaf/march=rv32imafd/march=rv32imafc/march=rv32imafdc/march=rv32g/march=rv32gc/march=rv64imac/march=rv64ima/march=rv64imaf/march=rv64imafd/march=rv64imafc/march=rv64imafdc/march=rv64g/march=rv64gc mabi=ilp32/mabi=ilp32d/mabi=lp64/mabi=lp64d
|
|
|
|
|
+MULTILIB_DIRNAMES = rv32imac rv32ima rv32imaf rv32imafd rv32imafc rv32imafdc rv32g rv32gc rv64imac rv64ima rv64imaf rv64imafd rv64imafc rv64imafdc rv64g rv64gc ilp32 ilp32d lp64 lp64d
|
|
|
|
|
+MULTILIB_REQUIRED = march=rv32imac/mabi=ilp32 march=rv32imafdc/mabi=ilp32d march=rv64imac/mabi=lp64 march=rv64imafdc/mabi=lp64d
|
|
|
|
|
+MULTILIB_REUSE = march.rv32imac/mabi.ilp32=march.rv32ima/mabi.ilp32 march.rv32imac/mabi.ilp32=march.rv32imaf/mabi.ilp32 march.rv32imac/mabi.ilp32=march.rv32imafd/mabi.ilp32 march.rv32imac/mabi.ilp32=march.rv32imafc/mabi.ilp32 march.rv32imac/mabi.ilp32=march.rv32imafdc/mabi.ilp32 march.rv32imac/mabi.ilp32=march.rv32g/mabi.ilp32 march.rv32imac/mabi.ilp32=march.rv32gc/mabi.ilp32 march.rv32imafdc/mabi.ilp32d=march.rv32imafd/mabi.ilp32d march.rv32imafdc/mabi.ilp32d=march.rv32gc/mabi.ilp32d march.rv32imafdc/mabi.ilp32d=march.rv32g/mabi.ilp32d march.rv64imac/mabi.lp64=march.rv64ima/mabi.lp64 march.rv64imac/mabi.lp64=march.rv64imaf/mabi.lp64 march.rv64imac/mabi.lp64=march.rv64imafd/mabi.lp64 march.rv64imac/mabi.lp64=march.rv64imafc/mabi.lp64 march.rv64imac/mabi.lp64=march.rv64imafdc/mabi.lp64 march.rv64imac/mabi.lp64=march.rv64g/mabi.lp64 march.rv64imac/mabi.lp64=march.rv64gc/mabi.lp64 march.rv64imafdc/mabi.lp64d=march.rv64imafd/mabi.lp64d march.rv64imafdc/mabi.lp64d=march.rv64gc/mabi.lp64d march.rv64imafdc/mabi.lp64d=march.rv64g/mabi.lp64d
|
|
|
|
|
diff --git original-gcc/gcc/config/riscv/t-riscv gcc-6.3.0/gcc/config/riscv/t-riscv
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..0765b49f90f
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/gcc/config/riscv/t-riscv
|
|
|
|
|
@@ -0,0 +1,11 @@
|
|
|
|
|
+riscv-builtins.o: $(srcdir)/config/riscv/riscv-builtins.c $(CONFIG_H) \
|
|
|
|
|
+ $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) $(TREE_H) $(RECOG_H) langhooks.h \
|
|
|
|
|
+ $(DIAGNOSTIC_CORE_H) $(OPTABS_H) $(srcdir)/config/riscv/riscv-ftypes.def \
|
|
|
|
|
+ $(srcdir)/config/riscv/riscv-modes.def
|
|
|
|
|
+ $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) \
|
|
|
|
|
+ $(srcdir)/config/riscv/riscv-builtins.c
|
|
|
|
|
+
|
|
|
|
|
+riscv-c.o: $(srcdir)/config/riscv/riscv-c.c $(CONFIG_H) $(SYSTEM_H) \
|
|
|
|
|
+ coretypes.h $(TM_H) $(TREE_H) output.h $(C_COMMON_H) $(TARGET_H)
|
|
|
|
|
+ $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) \
|
|
|
|
|
+ $(srcdir)/config/riscv/riscv-c.c
|
|
|
|
|
diff --git original-gcc/gcc/configure gcc-6.3.0/gcc/configure
|
|
|
|
|
index c9e43fb80e3..5359a4e6ee5 100755
|
|
|
|
|
--- original-gcc/gcc/configure
|
|
|
|
|
+++ gcc-6.3.0/gcc/configure
|
|
|
|
|
@@ -24156,6 +24156,17 @@ x3: .space 4
|
|
|
|
|
tls_first_minor=14
|
|
|
|
|
tls_as_opt="-a32 --fatal-warnings"
|
|
|
|
|
;;
|
|
|
|
|
+ riscv*-*-*)
|
|
|
|
|
+ conftest_s='
|
|
|
|
|
+ .section .tdata,"awT",@progbits
|
|
|
|
|
+x: .word 2
|
|
|
|
|
+ .text
|
|
|
|
|
+ la.tls.gd a0,x
|
|
|
|
|
+ call __tls_get_addr'
|
|
|
|
|
+ tls_first_major=2
|
|
|
|
|
+ tls_first_minor=21
|
|
|
|
|
+ tls_as_opt='--fatal-warnings'
|
|
|
|
|
+ ;;
|
|
|
|
|
s390-*-*)
|
|
|
|
|
conftest_s='
|
|
|
|
|
.section ".tdata","awT",@progbits
|
|
|
|
|
@@ -27516,8 +27527,8 @@ esac
|
|
|
|
|
# version to the per-target configury.
|
|
|
|
|
case "$cpu_type" in
|
|
|
|
|
aarch64 | alpha | arm | avr | bfin | cris | i386 | m32c | m68k | microblaze \
|
2017-08-08 00:27:15 +02:00
|
|
|
|
- | mips | nds32 | nios2 | pa | rs6000 | score | sparc | spu | tilegx | tilepro \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
- | visium | xstormy16 | xtensa)
|
2017-08-08 00:27:15 +02:00
|
|
|
|
+ | mips | nds32 | nios2 | pa | riscv | rs6000 | score | sparc | spu | tilegx \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ | tilepro | visium | xstormy16 | xtensa)
|
|
|
|
|
insn="nop"
|
|
|
|
|
;;
|
|
|
|
|
ia64 | s390)
|
|
|
|
|
diff --git original-gcc/gcc/configure.ac gcc-6.3.0/gcc/configure.ac
|
|
|
|
|
index 33f9a0ecdc6..673fb1bb891 100644
|
|
|
|
|
--- original-gcc/gcc/configure.ac
|
|
|
|
|
+++ gcc-6.3.0/gcc/configure.ac
|
|
|
|
|
@@ -3393,6 +3393,17 @@ x3: .space 4
|
|
|
|
|
tls_first_minor=14
|
|
|
|
|
tls_as_opt="-a32 --fatal-warnings"
|
|
|
|
|
;;
|
|
|
|
|
+ riscv*-*-*)
|
|
|
|
|
+ conftest_s='
|
|
|
|
|
+ .section .tdata,"awT",@progbits
|
|
|
|
|
+x: .word 2
|
|
|
|
|
+ .text
|
|
|
|
|
+ la.tls.gd a0,x
|
|
|
|
|
+ call __tls_get_addr'
|
|
|
|
|
+ tls_first_major=2
|
|
|
|
|
+ tls_first_minor=21
|
|
|
|
|
+ tls_as_opt='--fatal-warnings'
|
|
|
|
|
+ ;;
|
|
|
|
|
s390-*-*)
|
|
|
|
|
conftest_s='
|
|
|
|
|
.section ".tdata","awT",@progbits
|
|
|
|
|
@@ -4744,8 +4755,8 @@ esac
|
|
|
|
|
# version to the per-target configury.
|
|
|
|
|
case "$cpu_type" in
|
|
|
|
|
aarch64 | alpha | arm | avr | bfin | cris | i386 | m32c | m68k | microblaze \
|
2017-08-08 00:27:15 +02:00
|
|
|
|
- | mips | nds32 | nios2 | pa | rs6000 | score | sparc | spu | tilegx | tilepro \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
- | visium | xstormy16 | xtensa)
|
2017-08-08 00:27:15 +02:00
|
|
|
|
+ | mips | nds32 | nios2 | pa | riscv | rs6000 | score | sparc | spu | tilegx \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ | tilepro | visium | xstormy16 | xtensa)
|
|
|
|
|
insn="nop"
|
|
|
|
|
;;
|
|
|
|
|
ia64 | s390)
|
|
|
|
|
diff --git original-gcc/gcc/doc/contrib.texi gcc-6.3.0/gcc/doc/contrib.texi
|
|
|
|
|
index 5554d5f04c8..5b14fc445b5 100644
|
|
|
|
|
--- original-gcc/gcc/doc/contrib.texi
|
|
|
|
|
+++ gcc-6.3.0/gcc/doc/contrib.texi
|
|
|
|
|
@@ -173,6 +173,10 @@ Denis Chertykov for contributing and maintaining the AVR port, the first GCC por
|
|
|
|
|
for an 8-bit architecture.
|
|
|
|
|
|
|
|
|
|
@item
|
|
|
|
|
+Kito Cheng for his work on the RISC-V port, including bringing up the test
|
|
|
|
|
+suite and maintiance.
|
|
|
|
|
+
|
|
|
|
|
+@item
|
|
|
|
|
Scott Christley for his Objective-C contributions.
|
|
|
|
|
|
|
|
|
|
@item
|
|
|
|
|
@@ -217,6 +221,9 @@ Paul Dale for his work to add uClinux platform support to the
|
|
|
|
|
m68k backend.
|
|
|
|
|
|
|
|
|
|
@item
|
|
|
|
|
+Palmer Dabbelt for his work maintaining the RISC-V port.
|
|
|
|
|
+
|
|
|
|
|
+@item
|
|
|
|
|
Dario Dariol contributed the four varieties of sample programs
|
|
|
|
|
that print a copy of their source.
|
|
|
|
|
|
|
|
|
|
@@ -1035,6 +1042,9 @@ associated configure steps.
|
|
|
|
|
Todd Vierling for contributions for NetBSD ports.
|
|
|
|
|
|
|
|
|
|
@item
|
|
|
|
|
+Andrew Waterman for contributing the RISC-V port, as well as maintaining it.
|
|
|
|
|
+
|
|
|
|
|
+@item
|
|
|
|
|
Jonathan Wakely for contributing libstdc++ Doxygen notes and XHTML
|
|
|
|
|
guidance.
|
|
|
|
|
|
|
|
|
|
diff --git original-gcc/gcc/doc/install.texi gcc-6.3.0/gcc/doc/install.texi
|
|
|
|
|
index bc4edfdb096..0c82fe9eb94 100644
|
|
|
|
|
--- original-gcc/gcc/doc/install.texi
|
|
|
|
|
+++ gcc-6.3.0/gcc/doc/install.texi
|
|
|
|
|
@@ -4297,6 +4297,36 @@ This configuration is intended for embedded systems.
|
|
|
|
|
@html
|
|
|
|
|
<hr />
|
|
|
|
|
@end html
|
|
|
|
|
+@anchor{riscv32-x-elf}
|
|
|
|
|
+@heading riscv32-*-elf
|
|
|
|
|
+The RISC-V RV32 instruction set.
|
|
|
|
|
+This configuration is intended for embedded systems.
|
|
|
|
|
+
|
|
|
|
|
+@html
|
|
|
|
|
+<hr />
|
|
|
|
|
+@end html
|
|
|
|
|
+@anchor{riscv64-x-elf}
|
|
|
|
|
+@heading riscv64-*-elf
|
|
|
|
|
+The RISC-V RV64 instruction set.
|
|
|
|
|
+This configuration is intended for embedded systems.
|
|
|
|
|
+
|
|
|
|
|
+@html
|
|
|
|
|
+<hr />
|
|
|
|
|
+@end html
|
|
|
|
|
+@anchor{riscv32-x-linux}
|
|
|
|
|
+@heading riscv32-*-linux
|
|
|
|
|
+The RISC-V RV32 instruction set running GNU/Linux.
|
|
|
|
|
+
|
|
|
|
|
+@html
|
|
|
|
|
+<hr />
|
|
|
|
|
+@end html
|
|
|
|
|
+@anchor{riscv64-x-linux}
|
|
|
|
|
+@heading riscv64-*-linux
|
|
|
|
|
+The RISC-V RV64 instruction set running GNU/Linux.
|
|
|
|
|
+
|
|
|
|
|
+@html
|
|
|
|
|
+<hr />
|
|
|
|
|
+@end html
|
|
|
|
|
@anchor{rx-x-elf}
|
|
|
|
|
@heading rx-*-elf
|
|
|
|
|
The Renesas RX processor. See
|
|
|
|
|
diff --git original-gcc/gcc/doc/invoke.texi gcc-6.3.0/gcc/doc/invoke.texi
|
|
|
|
|
index 4b13aeb7426..581c4effbc5 100644
|
|
|
|
|
--- original-gcc/gcc/doc/invoke.texi
|
|
|
|
|
+++ gcc-6.3.0/gcc/doc/invoke.texi
|
|
|
|
|
@@ -1046,6 +1046,20 @@ See RS/6000 and PowerPC Options.
|
|
|
|
|
-mstack-protector-guard-offset=@var{offset} @gol
|
|
|
|
|
-mlra -mno-lra}
|
|
|
|
|
|
|
|
|
|
+@emph{RISC-V Options}
|
|
|
|
|
+@gccoptlist{-mbranch-cost=@var{N-instruction} @gol
|
|
|
|
|
+-mmemcpy -mno-memcpy @gol
|
|
|
|
|
+-mplt -mno-plt @gol
|
|
|
|
|
+-mabi=@var{ABI-string} @gol
|
|
|
|
|
+-mfdiv -mno-fdiv @gol
|
|
|
|
|
+-mdiv -mno-div @gol
|
|
|
|
|
+-march=@var{ISA-string} @gol
|
|
|
|
|
+-mtune=@var{processor-string} @gol
|
|
|
|
|
+-msmall-data-limit=@var{N-bytes} @gol
|
|
|
|
|
+-msave-restore -mno-save-restore @gol
|
|
|
|
|
+-mcmodel=@var{code-model} @gol
|
|
|
|
|
+-mexplicit-relocs -mno-explicit-relocs @gol}
|
|
|
|
|
+
|
|
|
|
|
@emph{RX Options}
|
|
|
|
|
@gccoptlist{-m64bit-doubles -m32bit-doubles -fpu -nofpu@gol
|
|
|
|
|
-mcpu=@gol
|
|
|
|
|
@@ -13881,6 +13895,7 @@ platform.
|
|
|
|
|
* PowerPC Options::
|
|
|
|
|
* RL78 Options::
|
|
|
|
|
* RS/6000 and PowerPC Options::
|
|
|
|
|
+* RISC-V Options::
|
|
|
|
|
* RX Options::
|
|
|
|
|
* S/390 and zSeries Options::
|
|
|
|
|
* Score Options::
|
|
|
|
|
@@ -22274,6 +22289,70 @@ offset from that base register. The default for those is as specified in the
|
|
|
|
|
relevant ABI.
|
|
|
|
|
@end table
|
|
|
|
|
|
|
|
|
|
+@node RISC-V Options
|
|
|
|
|
+@subsection RISC-V Options
|
|
|
|
|
+@cindex RISC-V Options
|
|
|
|
|
+
|
|
|
|
|
+These command-line options are defined for RISC-V targets:
|
|
|
|
|
+
|
|
|
|
|
+@table @gcctabopt
|
|
|
|
|
+@item -mbranch-cost=@var{N}
|
|
|
|
|
+@opindex mbranch-cost
|
|
|
|
|
+Set the cost of branches to roughly N instructions.
|
|
|
|
|
+
|
|
|
|
|
+@item -mmemcpy
|
|
|
|
|
+@itemx -mno-memcpy
|
|
|
|
|
+@opindex mmemcpy
|
|
|
|
|
+Don't optimize block moves.
|
|
|
|
|
+
|
|
|
|
|
+@item -mplt
|
|
|
|
|
+@itemx -mno-plt
|
|
|
|
|
+@opindex plt
|
|
|
|
|
+When generating -fpic code, allow the use of PLTs. Ignored for fno-pic.
|
|
|
|
|
+
|
|
|
|
|
+@item -mabi=@var{ABI-string}
|
|
|
|
|
+@opindex mabi
|
|
|
|
|
+Specify integer and floating-point calling convention. This defaults to the
|
|
|
|
|
+natural calling convention: eg LP64 for RV64I, ILP32 for RV32I, LP64D for
|
|
|
|
|
+RV64G.
|
|
|
|
|
+
|
|
|
|
|
+@item -mfdiv
|
|
|
|
|
+@itemx -mno-fdiv
|
|
|
|
|
+@opindex mfdiv
|
|
|
|
|
+Use hardware floating-point divide and square root instructions. This requires
|
|
|
|
|
+the F or D extensions for floating-point registers.
|
|
|
|
|
+
|
|
|
|
|
+@item -mdiv
|
|
|
|
|
+@itemx -mno-div
|
|
|
|
|
+@opindex mdiv
|
|
|
|
|
+Use hardware instructions for integer division. This requires the M extension.
|
|
|
|
|
+
|
|
|
|
|
+@item -march=@var{ISA-string}
|
|
|
|
|
+@opindex march
|
|
|
|
|
+Generate code for given RISC-V ISA (e.g. rv64im). ISA strings must be
|
|
|
|
|
+lower-case. Examples include "rv64i", "rv32g", and "rv32imaf".
|
|
|
|
|
+
|
|
|
|
|
+@item -mtune=@var{processor-string}
|
|
|
|
|
+@opindex mtune
|
|
|
|
|
+Optimize the output for the given processor, specified by microarchitecture
|
|
|
|
|
+name.
|
|
|
|
|
+
|
|
|
|
|
+@item -msmall-data-limit=@var{N}
|
|
|
|
|
+@opindex msmall-data-limit
|
|
|
|
|
+Put global and static data smaller than @var{N} bytes into a special section
|
|
|
|
|
+(on some targets).
|
|
|
|
|
+
|
|
|
|
|
+@item -msave-restore
|
|
|
|
|
+@itemx -mno-save-restore
|
|
|
|
|
+@opindex msave-restore
|
|
|
|
|
+Use smaller but slower prologue and epilogue code.
|
|
|
|
|
+
|
|
|
|
|
+@item -mcmodel=@var{code-model}
|
|
|
|
|
+@opindex mcmodel
|
|
|
|
|
+Specify the code model.
|
|
|
|
|
+
|
|
|
|
|
+@end table
|
|
|
|
|
+
|
|
|
|
|
@node RX Options
|
|
|
|
|
@subsection RX Options
|
|
|
|
|
@cindex RX Options
|
|
|
|
|
diff --git original-gcc/gcc/doc/md.texi gcc-6.3.0/gcc/doc/md.texi
|
|
|
|
|
index 11266d7dd3f..3f710740b22 100644
|
|
|
|
|
--- original-gcc/gcc/doc/md.texi
|
|
|
|
|
+++ gcc-6.3.0/gcc/doc/md.texi
|
|
|
|
|
@@ -3362,6 +3362,26 @@ The @code{X} register.
|
|
|
|
|
|
|
|
|
|
@end table
|
|
|
|
|
|
|
|
|
|
+@item RISC-V---@file{config/riscv/constraints.md}
|
|
|
|
|
+@table @code
|
|
|
|
|
+
|
|
|
|
|
+@item f
|
|
|
|
|
+A floating-point register (if availiable).
|
|
|
|
|
+
|
|
|
|
|
+@item I
|
|
|
|
|
+An I-type 12-bit signed immediate.
|
|
|
|
|
+
|
|
|
|
|
+@item J
|
|
|
|
|
+Integer zero.
|
|
|
|
|
+
|
|
|
|
|
+@item K
|
|
|
|
|
+A 5-bit unsigned immediate for CSR access instructions.
|
|
|
|
|
+
|
|
|
|
|
+@item A
|
|
|
|
|
+An address that is held in a general-purpose register.
|
|
|
|
|
+
|
|
|
|
|
+@end table
|
|
|
|
|
+
|
|
|
|
|
@item RX---@file{config/rx/constraints.md}
|
|
|
|
|
@table @code
|
|
|
|
|
@item Q
|
|
|
|
|
diff --git original-gcc/libatomic/configure.tgt gcc-6.3.0/libatomic/configure.tgt
|
|
|
|
|
index 6d77c9482a5..b8af3ab2546 100644
|
|
|
|
|
--- original-gcc/libatomic/configure.tgt
|
|
|
|
|
+++ gcc-6.3.0/libatomic/configure.tgt
|
|
|
|
|
@@ -37,6 +37,7 @@ case "${target_cpu}" in
|
|
|
|
|
ARCH=alpha
|
|
|
|
|
;;
|
|
|
|
|
rs6000 | powerpc*) ARCH=powerpc ;;
|
|
|
|
|
+ riscv*) ARCH=riscv ;;
|
|
|
|
|
sh*) ARCH=sh ;;
|
|
|
|
|
|
|
|
|
|
arm*)
|
|
|
|
|
diff --git original-gcc/libgcc/config.host gcc-6.3.0/libgcc/config.host
|
|
|
|
|
index 540bfa96358..9472a60886c 100644
|
|
|
|
|
--- original-gcc/libgcc/config.host
|
|
|
|
|
+++ gcc-6.3.0/libgcc/config.host
|
|
|
|
|
@@ -167,6 +167,9 @@ powerpc*-*-*)
|
|
|
|
|
;;
|
|
|
|
|
rs6000*-*-*)
|
|
|
|
|
;;
|
|
|
|
|
+riscv*-*-*)
|
|
|
|
|
+ cpu_type=riscv
|
|
|
|
|
+ ;;
|
|
|
|
|
sparc64*-*-*)
|
|
|
|
|
cpu_type=sparc
|
|
|
|
|
;;
|
|
|
|
|
@@ -1093,6 +1096,15 @@ powerpcle-*-eabi*)
|
|
|
|
|
tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-crtstuff t-crtstuff-pic t-fdpbit"
|
|
|
|
|
extra_parts="$extra_parts crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o ecrti.o ecrtn.o ncrti.o ncrtn.o"
|
|
|
|
|
;;
|
|
|
|
|
+riscv*-*-linux*)
|
|
|
|
|
+ tmake_file="${tmake_file} riscv/t-softfp${host_address} t-softfp riscv/t-elf riscv/t-elf${host_address}"
|
|
|
|
|
+ extra_parts="$extra_parts crtbegin.o crtend.o crti.o crtn.o crtendS.o crtbeginT.o"
|
|
|
|
|
+ md_unwind_header=riscv/linux-unwind.h
|
|
|
|
|
+ ;;
|
|
|
|
|
+riscv*-*-*)
|
|
|
|
|
+ tmake_file="${tmake_file} riscv/t-softfp${host_address} t-softfp riscv/t-elf riscv/t-elf${host_address}"
|
|
|
|
|
+ extra_parts="$extra_parts crtbegin.o crtend.o crti.o crtn.o"
|
|
|
|
|
+ ;;
|
|
|
|
|
rs6000-ibm-aix4.[3456789]* | powerpc-ibm-aix4.[3456789]*)
|
|
|
|
|
md_unwind_header=rs6000/aix-unwind.h
|
|
|
|
|
tmake_file="t-fdpbit rs6000/t-ppc64-fp rs6000/t-slibgcc-aix rs6000/t-ibm-ldouble"
|
|
|
|
|
diff --git original-gcc/libgcc/config/riscv/atomic.c gcc-6.3.0/libgcc/config/riscv/atomic.c
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..448b0e55b5a
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/libgcc/config/riscv/atomic.c
|
|
|
|
|
@@ -0,0 +1,111 @@
|
|
|
|
|
+/* Legacy sub-word atomics for RISC-V.
|
|
|
|
|
+
|
|
|
|
|
+ Copyright (C) 2016-2017 Free Software Foundation, Inc.
|
|
|
|
|
+
|
|
|
|
|
+This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+GCC is free software; you can redistribute it and/or modify it under
|
|
|
|
|
+the terms of the GNU General Public License as published by the Free
|
|
|
|
|
+Software Foundation; either version 3, or (at your option) any later
|
|
|
|
|
+version.
|
|
|
|
|
+
|
|
|
|
|
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
|
|
|
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
|
|
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
|
|
+for more details.
|
|
|
|
|
+
|
|
|
|
|
+Under Section 7 of GPL version 3, you are granted additional
|
|
|
|
|
+permissions described in the GCC Runtime Library Exception, version
|
|
|
|
|
+3.1, as published by the Free Software Foundation.
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+You should have received a copy of the GNU General Public License and
|
|
|
|
|
+a copy of the GCC Runtime Library Exception along with this program;
|
|
|
|
|
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
|
|
|
+<http://www.gnu.org/licenses/>. */
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#ifdef __riscv_atomic
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#include <stdbool.h>
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define INVERT "not %[tmp1], %[tmp1]\n\t"
|
|
|
|
|
+#define DONT_INVERT ""
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define GENERATE_FETCH_AND_OP(type, size, opname, insn, invert, cop) \
|
|
|
|
|
+ type __sync_fetch_and_ ## opname ## _ ## size (type *p, type v) \
|
|
|
|
|
+ { \
|
|
|
|
|
+ unsigned long aligned_addr = ((unsigned long) p) & ~3UL; \
|
|
|
|
|
+ int shift = (((unsigned long) p) & 3) * 8; \
|
|
|
|
|
+ unsigned mask = ((1U << ((sizeof v) * 8)) - 1) << shift; \
|
|
|
|
|
+ unsigned old, tmp1, tmp2; \
|
|
|
|
|
+ \
|
|
|
|
|
+ asm volatile ("1:\n\t" \
|
|
|
|
|
+ "lr.w.aq %[old], %[mem]\n\t" \
|
|
|
|
|
+ #insn " %[tmp1], %[old], %[value]\n\t" \
|
|
|
|
|
+ invert \
|
|
|
|
|
+ "and %[tmp1], %[tmp1], %[mask]\n\t" \
|
|
|
|
|
+ "and %[tmp2], %[old], %[not_mask]\n\t" \
|
|
|
|
|
+ "or %[tmp2], %[tmp2], %[tmp1]\n\t" \
|
|
|
|
|
+ "sc.w.rl %[tmp1], %[tmp2], %[mem]\n\t" \
|
|
|
|
|
+ "bnez %[tmp1], 1b" \
|
|
|
|
|
+ : [old] "=&r" (old), \
|
|
|
|
|
+ [mem] "+A" (*(volatile unsigned*) aligned_addr), \
|
|
|
|
|
+ [tmp1] "=&r" (tmp1), \
|
|
|
|
|
+ [tmp2] "=&r" (tmp2) \
|
|
|
|
|
+ : [value] "r" (((unsigned) v) << shift), \
|
|
|
|
|
+ [mask] "r" (mask), \
|
|
|
|
|
+ [not_mask] "r" (~mask)); \
|
|
|
|
|
+ \
|
|
|
|
|
+ return (type) (old >> shift); \
|
|
|
|
|
+ } \
|
|
|
|
|
+ \
|
|
|
|
|
+ type __sync_ ## opname ## _and_fetch_ ## size (type *p, type v) \
|
|
|
|
|
+ { \
|
|
|
|
|
+ type o = __sync_fetch_and_ ## opname ## _ ## size (p, v); \
|
|
|
|
|
+ return cop; \
|
|
|
|
|
+ }
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define GENERATE_COMPARE_AND_SWAP(type, size) \
|
|
|
|
|
+ type __sync_val_compare_and_swap_ ## size (type *p, type o, type n) \
|
|
|
|
|
+ { \
|
|
|
|
|
+ unsigned long aligned_addr = ((unsigned long) p) & ~3UL; \
|
|
|
|
|
+ int shift = (((unsigned long) p) & 3) * 8; \
|
|
|
|
|
+ unsigned mask = ((1U << ((sizeof o) * 8)) - 1) << shift; \
|
|
|
|
|
+ unsigned old, tmp1; \
|
|
|
|
|
+ \
|
|
|
|
|
+ asm volatile ("1:\n\t" \
|
|
|
|
|
+ "lr.w.aq %[old], %[mem]\n\t" \
|
|
|
|
|
+ "and %[tmp1], %[old], %[mask]\n\t" \
|
|
|
|
|
+ "bne %[tmp1], %[o], 1f\n\t" \
|
|
|
|
|
+ "and %[tmp1], %[old], %[not_mask]\n\t" \
|
|
|
|
|
+ "or %[tmp1], %[tmp1], %[n]\n\t" \
|
|
|
|
|
+ "sc.w.rl %[tmp1], %[tmp1], %[mem]\n\t" \
|
|
|
|
|
+ "bnez %[tmp1], 1b\n\t" \
|
|
|
|
|
+ "1:" \
|
|
|
|
|
+ : [old] "=&r" (old), \
|
|
|
|
|
+ [mem] "+A" (*(volatile unsigned*) aligned_addr), \
|
|
|
|
|
+ [tmp1] "=&r" (tmp1) \
|
|
|
|
|
+ : [o] "r" ((((unsigned) o) << shift) & mask), \
|
|
|
|
|
+ [n] "r" ((((unsigned) n) << shift) & mask), \
|
|
|
|
|
+ [mask] "r" (mask), \
|
|
|
|
|
+ [not_mask] "r" (~mask)); \
|
|
|
|
|
+ \
|
|
|
|
|
+ return (type) (old >> shift); \
|
|
|
|
|
+ } \
|
|
|
|
|
+ bool __sync_bool_compare_and_swap_ ## size (type *p, type o, type n) \
|
|
|
|
|
+ { \
|
|
|
|
|
+ return __sync_val_compare_and_swap(p, o, n) == o; \
|
|
|
|
|
+ }
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define GENERATE_ALL(type, size) \
|
|
|
|
|
+ GENERATE_FETCH_AND_OP(type, size, add, add, DONT_INVERT, o + v) \
|
|
|
|
|
+ GENERATE_FETCH_AND_OP(type, size, sub, sub, DONT_INVERT, o - v) \
|
|
|
|
|
+ GENERATE_FETCH_AND_OP(type, size, and, and, DONT_INVERT, o & v) \
|
|
|
|
|
+ GENERATE_FETCH_AND_OP(type, size, xor, xor, DONT_INVERT, o ^ v) \
|
|
|
|
|
+ GENERATE_FETCH_AND_OP(type, size, or, or, DONT_INVERT, o | v) \
|
|
|
|
|
+ GENERATE_FETCH_AND_OP(type, size, nand, and, INVERT, ~(o & v)) \
|
|
|
|
|
+ GENERATE_COMPARE_AND_SWAP(type, size)
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+GENERATE_ALL(unsigned char, 1)
|
|
|
|
|
+GENERATE_ALL(unsigned short, 2)
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#endif
|
|
|
|
|
diff --git original-gcc/libgcc/config/riscv/crti.S gcc-6.3.0/libgcc/config/riscv/crti.S
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..89bac706c63
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/libgcc/config/riscv/crti.S
|
2015-03-07 10:57:25 +01:00
|
|
|
|
@@ -0,0 +1 @@
|
|
|
|
|
+/* crti.S is empty because .init_array/.fini_array are used exclusively. */
|
2016-10-29 17:37:42 +02:00
|
|
|
|
diff --git original-gcc/libgcc/config/riscv/crtn.S gcc-6.3.0/libgcc/config/riscv/crtn.S
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..ca6ee7b6fba
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/libgcc/config/riscv/crtn.S
|
2015-03-07 10:57:25 +01:00
|
|
|
|
@@ -0,0 +1 @@
|
|
|
|
|
+/* crtn.S is empty because .init_array/.fini_array are used exclusively. */
|
2016-10-29 17:37:42 +02:00
|
|
|
|
diff --git original-gcc/libgcc/config/riscv/div.S gcc-6.3.0/libgcc/config/riscv/div.S
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..63d542e846c
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/libgcc/config/riscv/div.S
|
|
|
|
|
@@ -0,0 +1,146 @@
|
|
|
|
|
+/* Integer division routines for RISC-V.
|
|
|
|
|
+
|
|
|
|
|
+ Copyright (C) 2016-2017 Free Software Foundation, Inc.
|
|
|
|
|
+
|
|
|
|
|
+This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+GCC is free software; you can redistribute it and/or modify it under
|
|
|
|
|
+the terms of the GNU General Public License as published by the Free
|
|
|
|
|
+Software Foundation; either version 3, or (at your option) any later
|
|
|
|
|
+version.
|
|
|
|
|
+
|
|
|
|
|
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
|
|
|
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
|
|
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
|
|
+for more details.
|
|
|
|
|
+
|
|
|
|
|
+Under Section 7 of GPL version 3, you are granted additional
|
|
|
|
|
+permissions described in the GCC Runtime Library Exception, version
|
|
|
|
|
+3.1, as published by the Free Software Foundation.
|
|
|
|
|
+
|
|
|
|
|
+You should have received a copy of the GNU General Public License and
|
|
|
|
|
+a copy of the GCC Runtime Library Exception along with this program;
|
|
|
|
|
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
|
|
|
+<http://www.gnu.org/licenses/>. */
|
|
|
|
|
+
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ .text
|
|
|
|
|
+ .align 2
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#if __riscv_xlen == 32
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+/* Our RV64 64-bit routines are equivalent to our RV32 32-bit routines. */
|
|
|
|
|
+# define __udivdi3 __udivsi3
|
|
|
|
|
+# define __umoddi3 __umodsi3
|
|
|
|
|
+# define __divdi3 __divsi3
|
|
|
|
|
+# define __moddi3 __modsi3
|
|
|
|
|
+#else
|
|
|
|
|
+ .globl __udivsi3
|
|
|
|
|
+__udivsi3:
|
|
|
|
|
+ /* Compute __udivdi3(a0 << 32, a1 << 32); cast result to uint32_t. */
|
|
|
|
|
+ sll a0, a0, 32
|
|
|
|
|
+ sll a1, a1, 32
|
|
|
|
|
+ move t0, ra
|
|
|
|
|
+ jal __udivdi3
|
|
|
|
|
+ sext.w a0, a0
|
|
|
|
|
+ jr t0
|
|
|
|
|
+
|
|
|
|
|
+ .globl __umodsi3
|
|
|
|
|
+__umodsi3:
|
|
|
|
|
+ /* Compute __udivdi3((uint32_t)a0, (uint32_t)a1); cast a1 to uint32_t. */
|
|
|
|
|
+ sll a0, a0, 32
|
|
|
|
|
+ sll a1, a1, 32
|
|
|
|
|
+ srl a0, a0, 32
|
|
|
|
|
+ srl a1, a1, 32
|
|
|
|
|
+ move t0, ra
|
|
|
|
|
+ jal __udivdi3
|
|
|
|
|
+ sext.w a0, a1
|
|
|
|
|
+ jr t0
|
|
|
|
|
+
|
|
|
|
|
+ .globl __modsi3
|
|
|
|
|
+ __modsi3 = __moddi3
|
|
|
|
|
+
|
|
|
|
|
+ .globl __divsi3
|
|
|
|
|
+__divsi3:
|
|
|
|
|
+ /* Check for special case of INT_MIN/-1. Otherwise, fall into __divdi3. */
|
|
|
|
|
+ li t0, -1
|
|
|
|
|
+ beq a1, t0, .L20
|
|
|
|
|
+#endif
|
|
|
|
|
+
|
|
|
|
|
+ .globl __divdi3
|
|
|
|
|
+__divdi3:
|
|
|
|
|
+ bltz a0, .L10
|
|
|
|
|
+ bltz a1, .L11
|
|
|
|
|
+ /* Since the quotient is positive, fall into __udivdi3. */
|
|
|
|
|
+
|
|
|
|
|
+ .globl __udivdi3
|
|
|
|
|
+__udivdi3:
|
|
|
|
|
+ mv a2, a1
|
|
|
|
|
+ mv a1, a0
|
|
|
|
|
+ li a0, -1
|
|
|
|
|
+ beqz a2, .L5
|
|
|
|
|
+ li a3, 1
|
|
|
|
|
+ bgeu a2, a1, .L2
|
|
|
|
|
+.L1:
|
|
|
|
|
+ blez a2, .L2
|
|
|
|
|
+ slli a2, a2, 1
|
|
|
|
|
+ slli a3, a3, 1
|
|
|
|
|
+ bgtu a1, a2, .L1
|
|
|
|
|
+.L2:
|
|
|
|
|
+ li a0, 0
|
|
|
|
|
+.L3:
|
|
|
|
|
+ bltu a1, a2, .L4
|
|
|
|
|
+ sub a1, a1, a2
|
|
|
|
|
+ or a0, a0, a3
|
|
|
|
|
+.L4:
|
|
|
|
|
+ srli a3, a3, 1
|
|
|
|
|
+ srli a2, a2, 1
|
|
|
|
|
+ bnez a3, .L3
|
|
|
|
|
+.L5:
|
|
|
|
|
+ ret
|
|
|
|
|
+
|
|
|
|
|
+ .globl __umoddi3
|
|
|
|
|
+__umoddi3:
|
|
|
|
|
+ /* Call __udivdi3(a0, a1), then return the remainder, which is in a1. */
|
|
|
|
|
+ move t0, ra
|
|
|
|
|
+ jal __udivdi3
|
|
|
|
|
+ move a0, a1
|
|
|
|
|
+ jr t0
|
|
|
|
|
+
|
|
|
|
|
+ /* Handle negative arguments to __divdi3. */
|
|
|
|
|
+.L10:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ neg a0, a0
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ bgez a1, .L12 /* Compute __udivdi3(-a0, a1), then negate the result. */
|
|
|
|
|
+ neg a1, a1
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ j __udivdi3 /* Compute __udivdi3(-a0, -a1). */
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+.L11: /* Compute __udivdi3(a0, -a1), then negate the result. */
|
|
|
|
|
+ neg a1, a1
|
|
|
|
|
+.L12:
|
|
|
|
|
+ move t0, ra
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ jal __udivdi3
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ neg a0, a0
|
|
|
|
|
+ jr t0
|
|
|
|
|
+
|
|
|
|
|
+ .globl __moddi3
|
|
|
|
|
+__moddi3:
|
|
|
|
|
+ move t0, ra
|
|
|
|
|
+ bltz a1, .L31
|
|
|
|
|
+ bltz a0, .L32
|
|
|
|
|
+.L30:
|
|
|
|
|
+ jal __udivdi3 /* The dividend is not negative. */
|
|
|
|
|
+ move a0, a1
|
|
|
|
|
+ jr t0
|
|
|
|
|
+.L31:
|
|
|
|
|
+ neg a1, a1
|
|
|
|
|
+ bgez a0, .L30
|
|
|
|
|
+.L32:
|
|
|
|
|
+ neg a0, a0
|
|
|
|
|
+ jal __udivdi3 /* The dividend is hella negative. */
|
|
|
|
|
+ neg a0, a1
|
|
|
|
|
+ jr t0
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#if __riscv_xlen == 64
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ /* continuation of __divsi3 */
|
|
|
|
|
+.L20:
|
|
|
|
|
+ sll t0, t0, 31
|
|
|
|
|
+ bne a0, t0, __divdi3
|
|
|
|
|
+ ret
|
|
|
|
|
+#endif
|
2016-10-29 17:37:42 +02:00
|
|
|
|
diff --git original-gcc/libgcc/config/riscv/linux-unwind.h gcc-6.3.0/libgcc/config/riscv/linux-unwind.h
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..a051a2869d4
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/libgcc/config/riscv/linux-unwind.h
|
|
|
|
|
@@ -0,0 +1,89 @@
|
|
|
|
|
+/* Copyright (C) 2016-2017 Free Software Foundation, Inc.
|
|
|
|
|
+
|
|
|
|
|
+ This file is free software; you can redistribute it and/or modify it
|
|
|
|
|
+ under the terms of the GNU General Public License as published by the
|
|
|
|
|
+ Free Software Foundation; either version 3, or (at your option) any
|
|
|
|
|
+ later version.
|
|
|
|
|
+
|
|
|
|
|
+ This file is distributed in the hope that it will be useful, but
|
|
|
|
|
+ WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
|
|
+ General Public License for more details.
|
|
|
|
|
+
|
|
|
|
|
+ Under Section 7 of GPL version 3, you are granted additional
|
|
|
|
|
+ permissions described in the GCC Runtime Library Exception, version
|
|
|
|
|
+ 3.1, as published by the Free Software Foundation.
|
|
|
|
|
+
|
|
|
|
|
+ You should have received a copy of the GNU General Public License and
|
|
|
|
|
+ a copy of the GCC Runtime Library Exception along with this program;
|
|
|
|
|
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
|
|
|
+ <http://www.gnu.org/licenses/>. */
|
|
|
|
|
+
|
|
|
|
|
+#ifndef inhibit_libc
|
|
|
|
|
+
|
|
|
|
|
+#include <signal.h>
|
|
|
|
|
+#include <stdint.h>
|
|
|
|
|
+#include <sys/ucontext.h>
|
|
|
|
|
+
|
|
|
|
|
+#define LI_A7_8B 0x08b00893
|
|
|
|
|
+#define ECALL 0x00000073
|
|
|
|
|
+
|
|
|
|
|
+#define MD_FALLBACK_FRAME_STATE_FOR riscv_fallback_frame_state
|
|
|
|
|
+
|
|
|
|
|
+static _Unwind_Reason_Code
|
|
|
|
|
+riscv_fallback_frame_state (struct _Unwind_Context *context,
|
|
|
|
|
+ _Unwind_FrameState * fs)
|
|
|
|
|
+{
|
|
|
|
|
+ /* The kernel creates an rt_sigframe on the stack immediately prior
|
|
|
|
|
+ to delivering a signal.
|
|
|
|
|
+
|
|
|
|
|
+ This structure must have the same shape as the linux kernel
|
|
|
|
|
+ equivalent. */
|
|
|
|
|
+ struct rt_sigframe
|
|
|
|
|
+ {
|
|
|
|
|
+ siginfo_t info;
|
|
|
|
|
+ struct ucontext uc;
|
|
|
|
|
+ };
|
|
|
|
|
+
|
|
|
|
|
+ struct rt_sigframe *rt_;
|
|
|
|
|
+ _Unwind_Ptr new_cfa;
|
|
|
|
|
+ uint16_t *pc = context->ra;
|
|
|
|
|
+ struct sigcontext *sc;
|
|
|
|
|
+ int i;
|
|
|
|
|
+
|
|
|
|
|
+ /* A signal frame will have a return address pointing to
|
|
|
|
|
+ __default_sa_restorer. This code is hardwired as:
|
|
|
|
|
+
|
|
|
|
|
+ 0x08b00893 li a7,0x8b
|
|
|
|
|
+ 0x00000073 ecall
|
|
|
|
|
+
|
|
|
|
|
+ Note, the PC might only have 2-byte alignment.
|
|
|
|
|
+ */
|
|
|
|
|
+ if (pc[0] != (uint16_t)LI_A7_8B || pc[1] != (uint16_t)(LI_A7_8B >> 16)
|
|
|
|
|
+ || pc[2] != (uint16_t)ECALL || pc[3] != (uint16_t)(ECALL >> 16))
|
|
|
|
|
+ return _URC_END_OF_STACK;
|
|
|
|
|
+
|
|
|
|
|
+ rt_ = context->cfa;
|
|
|
|
|
+ sc = &rt_->uc.uc_mcontext;
|
|
|
|
|
+
|
|
|
|
|
+ new_cfa = (_Unwind_Ptr) sc;
|
|
|
|
|
+ fs->regs.cfa_how = CFA_REG_OFFSET;
|
|
|
|
|
+ fs->regs.cfa_reg = __LIBGCC_STACK_POINTER_REGNUM__;
|
|
|
|
|
+ fs->regs.cfa_offset = new_cfa - (_Unwind_Ptr) context->cfa;
|
|
|
|
|
+
|
|
|
|
|
+ for (i = 0; i < 32; i++)
|
|
|
|
|
+ {
|
|
|
|
|
+ fs->regs.reg[i].how = REG_SAVED_OFFSET;
|
|
|
|
|
+ fs->regs.reg[i].loc.offset = (_Unwind_Ptr) &sc->gregs[i] - new_cfa;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ fs->signal_frame = 1;
|
|
|
|
|
+ fs->retaddr_column = __LIBGCC_DWARF_ALT_FRAME_RETURN_COLUMN__;
|
|
|
|
|
+ fs->regs.reg[fs->retaddr_column].how = REG_SAVED_VAL_OFFSET;
|
|
|
|
|
+ fs->regs.reg[fs->retaddr_column].loc.offset =
|
|
|
|
|
+ (_Unwind_Ptr) sc->gregs[0] - new_cfa;
|
|
|
|
|
+
|
|
|
|
|
+ return _URC_NO_REASON;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+#endif
|
|
|
|
|
diff --git original-gcc/libgcc/config/riscv/muldi3.S gcc-6.3.0/libgcc/config/riscv/muldi3.S
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..eb3d9b0df3d
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/libgcc/config/riscv/muldi3.S
|
|
|
|
|
@@ -0,0 +1,46 @@
|
|
|
|
|
+/* Integer multiplication routines for RISC-V.
|
|
|
|
|
+
|
|
|
|
|
+ Copyright (C) 2016-2017 Free Software Foundation, Inc.
|
|
|
|
|
+
|
|
|
|
|
+This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+GCC is free software; you can redistribute it and/or modify it under
|
|
|
|
|
+the terms of the GNU General Public License as published by the Free
|
|
|
|
|
+Software Foundation; either version 3, or (at your option) any later
|
|
|
|
|
+version.
|
|
|
|
|
+
|
|
|
|
|
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
|
|
|
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
|
|
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
|
|
+for more details.
|
|
|
|
|
+
|
|
|
|
|
+Under Section 7 of GPL version 3, you are granted additional
|
|
|
|
|
+permissions described in the GCC Runtime Library Exception, version
|
|
|
|
|
+3.1, as published by the Free Software Foundation.
|
|
|
|
|
+
|
|
|
|
|
+You should have received a copy of the GNU General Public License and
|
|
|
|
|
+a copy of the GCC Runtime Library Exception along with this program;
|
|
|
|
|
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
|
|
|
+<http://www.gnu.org/licenses/>. */
|
|
|
|
|
+
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ .text
|
|
|
|
|
+ .align 2
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#if __riscv_xlen == 32
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+/* Our RV64 64-bit routine is equivalent to our RV32 32-bit routine. */
|
|
|
|
|
+# define __muldi3 __mulsi3
|
|
|
|
|
+#endif
|
|
|
|
|
+
|
|
|
|
|
+ .globl __muldi3
|
|
|
|
|
+__muldi3:
|
|
|
|
|
+ mv a2, a0
|
|
|
|
|
+ li a0, 0
|
|
|
|
|
+.L1:
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ andi a3, a1, 1
|
|
|
|
|
+ beqz a3, .L2
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+ add a0, a0, a2
|
|
|
|
|
+.L2:
|
|
|
|
|
+ srli a1, a1, 1
|
|
|
|
|
+ slli a2, a2, 1
|
|
|
|
|
+ bnez a1, .L1
|
|
|
|
|
+ ret
|
2016-10-29 17:37:42 +02:00
|
|
|
|
diff --git original-gcc/libgcc/config/riscv/multi3.S gcc-6.3.0/libgcc/config/riscv/multi3.S
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..4d454e65013
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/libgcc/config/riscv/multi3.S
|
|
|
|
|
@@ -0,0 +1,81 @@
|
|
|
|
|
+/* Integer multiplication routines for RISC-V.
|
|
|
|
|
+
|
|
|
|
|
+ Copyright (C) 2016-2017 Free Software Foundation, Inc.
|
|
|
|
|
+
|
|
|
|
|
+This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+GCC is free software; you can redistribute it and/or modify it under
|
|
|
|
|
+the terms of the GNU General Public License as published by the Free
|
|
|
|
|
+Software Foundation; either version 3, or (at your option) any later
|
|
|
|
|
+version.
|
|
|
|
|
+
|
|
|
|
|
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
|
|
|
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
|
|
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
|
|
+for more details.
|
|
|
|
|
+
|
|
|
|
|
+Under Section 7 of GPL version 3, you are granted additional
|
|
|
|
|
+permissions described in the GCC Runtime Library Exception, version
|
|
|
|
|
+3.1, as published by the Free Software Foundation.
|
|
|
|
|
+
|
|
|
|
|
+You should have received a copy of the GNU General Public License and
|
|
|
|
|
+a copy of the GCC Runtime Library Exception along with this program;
|
|
|
|
|
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
|
|
|
+<http://www.gnu.org/licenses/>. */
|
|
|
|
|
+
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ .text
|
|
|
|
|
+ .align 2
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#if __riscv_xlen == 32
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+/* Our RV64 64-bit routines are equivalent to our RV32 32-bit routines. */
|
|
|
|
|
+# define __multi3 __muldi3
|
|
|
|
|
+#endif
|
|
|
|
|
+
|
|
|
|
|
+ .globl __multi3
|
|
|
|
|
+__multi3:
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#if __riscv_xlen == 32
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+/* Our RV64 64-bit routines are equivalent to our RV32 32-bit routines. */
|
|
|
|
|
+# define __muldi3 __mulsi3
|
|
|
|
|
+#endif
|
|
|
|
|
+
|
|
|
|
|
+/* We rely on the fact that __muldi3 doesn't clobber the t-registers. */
|
|
|
|
|
+
|
|
|
|
|
+ mv t0, ra
|
|
|
|
|
+ mv t5, a0
|
|
|
|
|
+ mv a0, a1
|
|
|
|
|
+ mv t6, a3
|
|
|
|
|
+ mv a1, t5
|
|
|
|
|
+ mv a4, a2
|
|
|
|
|
+ li a5, 0
|
|
|
|
|
+ li t2, 0
|
|
|
|
|
+ li t4, 0
|
|
|
|
|
+.L1:
|
|
|
|
|
+ add a6, t2, a1
|
|
|
|
|
+ andi t3, a4, 1
|
|
|
|
|
+ slli a7, a5, 1
|
|
|
|
|
+ slti t1, a1, 0
|
|
|
|
|
+ srli a4, a4, 1
|
|
|
|
|
+ add a5, t4, a5
|
|
|
|
|
+ beqz t3, .L2
|
|
|
|
|
+ sltu t3, a6, t2
|
|
|
|
|
+ mv t2, a6
|
|
|
|
|
+ add t4, t3, a5
|
|
|
|
|
+.L2:
|
|
|
|
|
+ slli a1, a1, 1
|
|
|
|
|
+ or a5, t1, a7
|
|
|
|
|
+ bnez a4, .L1
|
|
|
|
|
+ beqz a0, .L3
|
|
|
|
|
+ mv a1, a2
|
|
|
|
|
+ call __muldi3
|
|
|
|
|
+ add t4, t4, a0
|
|
|
|
|
+.L3:
|
|
|
|
|
+ beqz t6, .L4
|
|
|
|
|
+ mv a1, t6
|
|
|
|
|
+ mv a0, t5
|
|
|
|
|
+ call __muldi3
|
|
|
|
|
+ add t4, t4, a0
|
|
|
|
|
+.L4:
|
|
|
|
|
+ mv a0, t2
|
|
|
|
|
+ mv a1, t4
|
|
|
|
|
+ jr t0
|
2016-10-29 17:37:42 +02:00
|
|
|
|
diff --git original-gcc/libgcc/config/riscv/save-restore.S gcc-6.3.0/libgcc/config/riscv/save-restore.S
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..2073a73089b
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/libgcc/config/riscv/save-restore.S
|
|
|
|
|
@@ -0,0 +1,463 @@
|
|
|
|
|
+/* Callee-saved register spill and fill routines for RISC-V.
|
|
|
|
|
+
|
|
|
|
|
+ Copyright (C) 2016-2017 Free Software Foundation, Inc.
|
2015-03-07 10:57:25 +01:00
|
|
|
|
+
|
|
|
|
|
+This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+GCC is free software; you can redistribute it and/or modify it under
|
|
|
|
|
+the terms of the GNU General Public License as published by the Free
|
|
|
|
|
+Software Foundation; either version 3, or (at your option) any later
|
|
|
|
|
+version.
|
|
|
|
|
+
|
|
|
|
|
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
|
|
|
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
|
|
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
|
|
+for more details.
|
|
|
|
|
+
|
|
|
|
|
+Under Section 7 of GPL version 3, you are granted additional
|
|
|
|
|
+permissions described in the GCC Runtime Library Exception, version
|
|
|
|
|
+3.1, as published by the Free Software Foundation.
|
|
|
|
|
+
|
|
|
|
|
+You should have received a copy of the GNU General Public License and
|
|
|
|
|
+a copy of the GCC Runtime Library Exception along with this program;
|
|
|
|
|
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
|
|
|
+<http://www.gnu.org/licenses/>. */
|
|
|
|
|
+
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ .text
|
|
|
|
|
+
|
|
|
|
|
+ .globl __riscv_save_12
|
|
|
|
|
+ .globl __riscv_save_11
|
|
|
|
|
+ .globl __riscv_save_10
|
|
|
|
|
+ .globl __riscv_save_9
|
|
|
|
|
+ .globl __riscv_save_8
|
|
|
|
|
+ .globl __riscv_save_7
|
|
|
|
|
+ .globl __riscv_save_6
|
|
|
|
|
+ .globl __riscv_save_5
|
|
|
|
|
+ .globl __riscv_save_4
|
|
|
|
|
+ .globl __riscv_save_3
|
|
|
|
|
+ .globl __riscv_save_2
|
|
|
|
|
+ .globl __riscv_save_1
|
|
|
|
|
+ .globl __riscv_save_0
|
|
|
|
|
+
|
|
|
|
|
+ .globl __riscv_restore_12
|
|
|
|
|
+ .globl __riscv_restore_11
|
|
|
|
|
+ .globl __riscv_restore_10
|
|
|
|
|
+ .globl __riscv_restore_9
|
|
|
|
|
+ .globl __riscv_restore_8
|
|
|
|
|
+ .globl __riscv_restore_7
|
|
|
|
|
+ .globl __riscv_restore_6
|
|
|
|
|
+ .globl __riscv_restore_5
|
|
|
|
|
+ .globl __riscv_restore_4
|
|
|
|
|
+ .globl __riscv_restore_3
|
|
|
|
|
+ .globl __riscv_restore_2
|
|
|
|
|
+ .globl __riscv_restore_1
|
|
|
|
|
+ .globl __riscv_restore_0
|
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#if __riscv_xlen == 64
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+__riscv_save_12:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_startproc
|
|
|
|
|
+ # __riscv_save_* routine use t0/x5 as return address
|
|
|
|
|
+ .cfi_return_column 5
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, -112
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_def_cfa_offset 112
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ li t1, 0
|
|
|
|
|
+ sd s11, 8(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 27, -104
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ j .Ls10
|
|
|
|
|
+
|
|
|
|
|
+__riscv_save_11:
|
|
|
|
|
+__riscv_save_10:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 27
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, -112
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_def_cfa_offset 112
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ li t1, -16
|
|
|
|
|
+.Ls10:
|
|
|
|
|
+ sd s10, 16(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 26, -96
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sd s9, 24(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 25, -88
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ j .Ls8
|
|
|
|
|
+
|
|
|
|
|
+__riscv_save_9:
|
|
|
|
|
+__riscv_save_8:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 25
|
|
|
|
|
+ .cfi_restore 26
|
|
|
|
|
+ .cfi_restore 27
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, -112
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_def_cfa_offset 112
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ li t1, -32
|
|
|
|
|
+.Ls8:
|
|
|
|
|
+ sd s8, 32(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 24, -80
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sd s7, 40(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 23, -72
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ j .Ls6
|
|
|
|
|
+
|
|
|
|
|
+__riscv_save_7:
|
|
|
|
|
+__riscv_save_6:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 23
|
|
|
|
|
+ .cfi_restore 24
|
|
|
|
|
+ .cfi_restore 25
|
|
|
|
|
+ .cfi_restore 26
|
|
|
|
|
+ .cfi_restore 27
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, -112
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_def_cfa_offset 112
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ li t1, -48
|
|
|
|
|
+.Ls6:
|
|
|
|
|
+ sd s6, 48(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 22, -64
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sd s5, 56(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 21, -56
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ j .Ls4
|
|
|
|
|
+
|
|
|
|
|
+__riscv_save_5:
|
|
|
|
|
+__riscv_save_4:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 21
|
|
|
|
|
+ .cfi_restore 22
|
|
|
|
|
+ .cfi_restore 24
|
|
|
|
|
+ .cfi_restore 25
|
|
|
|
|
+ .cfi_restore 26
|
|
|
|
|
+ .cfi_restore 27
|
|
|
|
|
+ .cfi_restore 24
|
|
|
|
|
+ .cfi_restore 25
|
|
|
|
|
+ .cfi_restore 26
|
|
|
|
|
+ .cfi_restore 27
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, -112
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_def_cfa_offset 112
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ li t1, -64
|
|
|
|
|
+.Ls4:
|
|
|
|
|
+ sd s4, 64(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 20, -48
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sd s3, 72(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 19, -40
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ j .Ls2
|
|
|
|
|
+
|
|
|
|
|
+__riscv_save_3:
|
|
|
|
|
+__riscv_save_2:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 19
|
|
|
|
|
+ .cfi_restore 20
|
|
|
|
|
+ .cfi_restore 21
|
|
|
|
|
+ .cfi_restore 22
|
|
|
|
|
+ .cfi_restore 24
|
|
|
|
|
+ .cfi_restore 25
|
|
|
|
|
+ .cfi_restore 26
|
|
|
|
|
+ .cfi_restore 27
|
|
|
|
|
+ .cfi_restore 24
|
|
|
|
|
+ .cfi_restore 25
|
|
|
|
|
+ .cfi_restore 26
|
|
|
|
|
+ .cfi_restore 27
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, -112
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_def_cfa_offset 112
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ li t1, -80
|
|
|
|
|
+.Ls2:
|
|
|
|
|
+ sd s2, 80(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 18, -32
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sd s1, 88(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 9, -24
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sd s0, 96(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 8, -16
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sd ra, 104(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 1, -8
|
|
|
|
|
+ # CFA info is not correct in next 2 instruction since t1's
|
|
|
|
|
+ # value is depend on how may register really save.
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sub sp, sp, t1
|
|
|
|
|
+ jr t0
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_endproc
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+__riscv_save_1:
|
|
|
|
|
+__riscv_save_0:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_startproc
|
|
|
|
|
+ # __riscv_save_* routine use t0/x5 as return address
|
|
|
|
|
+ .cfi_return_column 5
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, -16
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_def_cfa_offset 16
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sd s0, 0(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 8, -16
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sd ra, 8(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 1, -8
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ jr t0
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_endproc
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+__riscv_restore_12:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_startproc
|
|
|
|
|
+ .cfi_def_cfa_offset 112
|
|
|
|
|
+ .cfi_offset 27, -104
|
|
|
|
|
+ .cfi_offset 26, -96
|
|
|
|
|
+ .cfi_offset 25, -88
|
|
|
|
|
+ .cfi_offset 24, -80
|
|
|
|
|
+ .cfi_offset 23, -72
|
|
|
|
|
+ .cfi_offset 22, -64
|
|
|
|
|
+ .cfi_offset 21, -56
|
|
|
|
|
+ .cfi_offset 20, -48
|
|
|
|
|
+ .cfi_offset 19, -40
|
|
|
|
|
+ .cfi_offset 18, -32
|
|
|
|
|
+ .cfi_offset 9, -24
|
|
|
|
|
+ .cfi_offset 8, -16
|
|
|
|
|
+ .cfi_offset 1, -8
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ld s11, 8(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 27
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, 16
|
|
|
|
|
+
|
|
|
|
|
+__riscv_restore_11:
|
|
|
|
|
+__riscv_restore_10:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 27
|
|
|
|
|
+ .cfi_def_cfa_offset 96
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ld s10, 0(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 26
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ld s9, 8(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 25
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, 16
|
|
|
|
|
+
|
|
|
|
|
+__riscv_restore_9:
|
|
|
|
|
+__riscv_restore_8:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 25
|
|
|
|
|
+ .cfi_restore 26
|
|
|
|
|
+ .cfi_restore 27
|
|
|
|
|
+ .cfi_def_cfa_offset 80
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ld s8, 0(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 24
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ld s7, 8(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 23
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, 16
|
|
|
|
|
+
|
|
|
|
|
+__riscv_restore_7:
|
|
|
|
|
+__riscv_restore_6:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 23
|
|
|
|
|
+ .cfi_restore 24
|
|
|
|
|
+ .cfi_restore 25
|
|
|
|
|
+ .cfi_restore 26
|
|
|
|
|
+ .cfi_restore 27
|
|
|
|
|
+ .cfi_def_cfa_offset 64
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ld s6, 0(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 22
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ld s5, 8(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 21
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, 16
|
|
|
|
|
+
|
|
|
|
|
+__riscv_restore_5:
|
|
|
|
|
+__riscv_restore_4:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 21
|
|
|
|
|
+ .cfi_restore 22
|
|
|
|
|
+ .cfi_restore 23
|
|
|
|
|
+ .cfi_restore 24
|
|
|
|
|
+ .cfi_restore 25
|
|
|
|
|
+ .cfi_restore 26
|
|
|
|
|
+ .cfi_restore 27
|
|
|
|
|
+ .cfi_def_cfa_offset 48
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ld s4, 0(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 20
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ld s3, 8(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 19
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, 16
|
|
|
|
|
+
|
|
|
|
|
+__riscv_restore_3:
|
|
|
|
|
+__riscv_restore_2:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 19
|
|
|
|
|
+ .cfi_restore 20
|
|
|
|
|
+ .cfi_restore 21
|
|
|
|
|
+ .cfi_restore 22
|
|
|
|
|
+ .cfi_restore 23
|
|
|
|
|
+ .cfi_restore 24
|
|
|
|
|
+ .cfi_restore 25
|
|
|
|
|
+ .cfi_restore 26
|
|
|
|
|
+ .cfi_restore 27
|
|
|
|
|
+ .cfi_def_cfa_offset 32
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ld s2, 0(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 18
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ld s1, 8(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 9
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, 16
|
|
|
|
|
+
|
|
|
|
|
+__riscv_restore_1:
|
|
|
|
|
+__riscv_restore_0:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 9
|
|
|
|
|
+ .cfi_restore 18
|
|
|
|
|
+ .cfi_restore 19
|
|
|
|
|
+ .cfi_restore 20
|
|
|
|
|
+ .cfi_restore 21
|
|
|
|
|
+ .cfi_restore 22
|
|
|
|
|
+ .cfi_restore 23
|
|
|
|
|
+ .cfi_restore 24
|
|
|
|
|
+ .cfi_restore 25
|
|
|
|
|
+ .cfi_restore 26
|
|
|
|
|
+ .cfi_restore 27
|
|
|
|
|
+ .cfi_def_cfa_offset 16
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ld s0, 0(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 8
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ld ra, 8(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 1
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, 16
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_def_cfa_offset 0
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ret
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_endproc
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+#else
|
|
|
|
|
+
|
|
|
|
|
+__riscv_save_12:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_startproc
|
|
|
|
|
+ # __riscv_save_* routine use t0/x5 as return address
|
|
|
|
|
+ .cfi_return_column 5
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, -64
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_def_cfa_offset 64
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ li t1, 0
|
|
|
|
|
+ sw s11, 12(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 27, -52
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ j .Ls10
|
|
|
|
|
+
|
|
|
|
|
+__riscv_save_11:
|
|
|
|
|
+__riscv_save_10:
|
|
|
|
|
+__riscv_save_9:
|
|
|
|
|
+__riscv_save_8:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 27
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, -64
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_def_cfa_offset 64
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ li t1, -16
|
|
|
|
|
+.Ls10:
|
|
|
|
|
+ sw s10, 16(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 26, -48
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sw s9, 20(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 25, -44
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sw s8, 24(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 24, -40
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sw s7, 28(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 23, -36
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ j .Ls6
|
|
|
|
|
+
|
|
|
|
|
+__riscv_save_7:
|
|
|
|
|
+__riscv_save_6:
|
|
|
|
|
+__riscv_save_5:
|
|
|
|
|
+__riscv_save_4:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 23
|
|
|
|
|
+ .cfi_restore 24
|
|
|
|
|
+ .cfi_restore 25
|
|
|
|
|
+ .cfi_restore 26
|
|
|
|
|
+ .cfi_restore 27
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, -64
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_def_cfa_offset 64
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ li t1, -32
|
|
|
|
|
+.Ls6:
|
|
|
|
|
+ sw s6, 32(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 22, -32
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sw s5, 36(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 21, -28
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sw s4, 40(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 20, -24
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sw s3, 44(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 19, -20
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sw s2, 48(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 18, -16
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sw s1, 52(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 9, -12
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sw s0, 56(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 8, -8
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sw ra, 60(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 1, -4
|
|
|
|
|
+ # CFA info is not correct in next 2 instruction since t1's
|
|
|
|
|
+ # value is depend on how may register really save.
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sub sp, sp, t1
|
|
|
|
|
+ jr t0
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_endproc
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+__riscv_save_3:
|
|
|
|
|
+__riscv_save_2:
|
|
|
|
|
+__riscv_save_1:
|
|
|
|
|
+__riscv_save_0:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_startproc
|
|
|
|
|
+ # __riscv_save_* routine use t0/x5 as return address
|
|
|
|
|
+ .cfi_return_column 5
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, -16
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_def_cfa_offset 16
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sw s2, 0(sp)
|
|
|
|
|
+ sw s1, 4(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 9, -16
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sw s0, 8(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 8, -8
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ sw ra, 12(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_offset 1, -4
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ jr t0
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_endproc
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
|
|
|
|
+__riscv_restore_12:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_startproc
|
|
|
|
|
+ .cfi_def_cfa_offset 64
|
|
|
|
|
+ .cfi_offset 27, -52
|
|
|
|
|
+ .cfi_offset 26, -48
|
|
|
|
|
+ .cfi_offset 25, -44
|
|
|
|
|
+ .cfi_offset 24, -40
|
|
|
|
|
+ .cfi_offset 23, -36
|
|
|
|
|
+ .cfi_offset 22, -32
|
|
|
|
|
+ .cfi_offset 21, -28
|
|
|
|
|
+ .cfi_offset 20, -24
|
|
|
|
|
+ .cfi_offset 19, -20
|
|
|
|
|
+ .cfi_offset 18, -16
|
|
|
|
|
+ .cfi_offset 9, -12
|
|
|
|
|
+ .cfi_offset 8, -8
|
|
|
|
|
+ .cfi_offset 1, -4
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ lw s11, 12(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 27
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, 16
|
|
|
|
|
+
|
|
|
|
|
+__riscv_restore_11:
|
|
|
|
|
+__riscv_restore_10:
|
|
|
|
|
+__riscv_restore_9:
|
|
|
|
|
+__riscv_restore_8:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 27
|
|
|
|
|
+ .cfi_def_cfa_offset 48
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ lw s10, 0(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 26
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ lw s9, 4(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 25
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ lw s8, 8(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 24
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ lw s7, 12(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 23
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, 16
|
|
|
|
|
+
|
|
|
|
|
+__riscv_restore_7:
|
|
|
|
|
+__riscv_restore_6:
|
|
|
|
|
+__riscv_restore_5:
|
|
|
|
|
+__riscv_restore_4:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 23
|
|
|
|
|
+ .cfi_restore 24
|
|
|
|
|
+ .cfi_restore 25
|
|
|
|
|
+ .cfi_restore 26
|
|
|
|
|
+ .cfi_restore 27
|
|
|
|
|
+ .cfi_def_cfa_offset 32
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ lw s6, 0(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 22
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ lw s5, 4(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 21
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ lw s4, 8(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 20
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ lw s3, 12(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 19
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, 16
|
|
|
|
|
+
|
|
|
|
|
+__riscv_restore_3:
|
|
|
|
|
+__riscv_restore_2:
|
|
|
|
|
+__riscv_restore_1:
|
|
|
|
|
+__riscv_restore_0:
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 19
|
|
|
|
|
+ .cfi_restore 20
|
|
|
|
|
+ .cfi_restore 21
|
|
|
|
|
+ .cfi_restore 22
|
|
|
|
|
+ .cfi_restore 24
|
|
|
|
|
+ .cfi_restore 25
|
|
|
|
|
+ .cfi_restore 26
|
|
|
|
|
+ .cfi_restore 27
|
|
|
|
|
+ .cfi_def_cfa_offset 16
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ lw s2, 0(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 18
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ lw s1, 4(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 9
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ lw s0, 8(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 8
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ lw ra, 12(sp)
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_restore 1
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ addi sp, sp, 16
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_def_cfa_offset 0
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+ ret
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ .cfi_endproc
|
|
|
|
|
+
|
|
|
|
|
+#endif
|
|
|
|
|
diff --git original-gcc/libgcc/config/riscv/sfp-machine.h gcc-6.3.0/libgcc/config/riscv/sfp-machine.h
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..b1a27e7ed44
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/libgcc/config/riscv/sfp-machine.h
|
|
|
|
|
@@ -0,0 +1,137 @@
|
|
|
|
|
+/* Software floating-point machine description for RISC-V.
|
|
|
|
|
+
|
|
|
|
|
+ Copyright (C) 2016-2017 Free Software Foundation, Inc.
|
|
|
|
|
+
|
|
|
|
|
+This file is part of GCC.
|
|
|
|
|
+
|
|
|
|
|
+GCC is free software; you can redistribute it and/or modify it under
|
|
|
|
|
+the terms of the GNU General Public License as published by the Free
|
|
|
|
|
+Software Foundation; either version 3, or (at your option) any later
|
|
|
|
|
+version.
|
|
|
|
|
+
|
|
|
|
|
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
|
|
|
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
|
|
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
|
|
+for more details.
|
|
|
|
|
+
|
|
|
|
|
+Under Section 7 of GPL version 3, you are granted additional
|
|
|
|
|
+permissions described in the GCC Runtime Library Exception, version
|
|
|
|
|
+3.1, as published by the Free Software Foundation.
|
|
|
|
|
+
|
|
|
|
|
+You should have received a copy of the GNU General Public License and
|
|
|
|
|
+a copy of the GCC Runtime Library Exception along with this program;
|
|
|
|
|
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
|
|
|
+<http://www.gnu.org/licenses/>. */
|
|
|
|
|
+
|
|
|
|
|
+#if __riscv_xlen == 32
|
|
|
|
|
+
|
|
|
|
|
+#define _FP_W_TYPE_SIZE 32
|
|
|
|
|
+#define _FP_W_TYPE unsigned long
|
|
|
|
|
+#define _FP_WS_TYPE signed long
|
|
|
|
|
+#define _FP_I_TYPE long
|
|
|
|
|
+
|
|
|
|
|
+#define _FP_MUL_MEAT_S(R,X,Y) \
|
|
|
|
|
+ _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
|
|
|
|
|
+#define _FP_MUL_MEAT_D(R,X,Y) \
|
|
|
|
|
+ _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
|
|
|
|
|
+#define _FP_MUL_MEAT_Q(R,X,Y) \
|
|
|
|
|
+ _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
|
|
|
|
|
+
|
|
|
|
|
+#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv_norm(S,R,X,Y)
|
|
|
|
|
+#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y)
|
|
|
|
|
+#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y)
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+#define _FP_NANFRAC_S _FP_QNANBIT_S
|
|
|
|
|
+#define _FP_NANFRAC_D _FP_QNANBIT_D, 0
|
|
|
|
|
+#define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0, 0, 0
|
|
|
|
|
+
|
|
|
|
|
+#else
|
|
|
|
|
+
|
|
|
|
|
+#define _FP_W_TYPE_SIZE 64
|
|
|
|
|
+#define _FP_W_TYPE unsigned long long
|
|
|
|
|
+#define _FP_WS_TYPE signed long long
|
|
|
|
|
+#define _FP_I_TYPE long long
|
|
|
|
|
+
|
|
|
|
|
+#define _FP_MUL_MEAT_S(R,X,Y) \
|
|
|
|
|
+ _FP_MUL_MEAT_1_imm(_FP_WFRACBITS_S,R,X,Y)
|
|
|
|
|
+#define _FP_MUL_MEAT_D(R,X,Y) \
|
|
|
|
|
+ _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
|
|
|
|
|
+#define _FP_MUL_MEAT_Q(R,X,Y) \
|
|
|
|
|
+ _FP_MUL_MEAT_2_wide_3mul(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
|
|
|
|
|
+
|
|
|
|
|
+#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm)
|
|
|
|
|
+#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_1_udiv_norm(D,R,X,Y)
|
|
|
|
|
+#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y)
|
|
|
|
|
+
|
|
|
|
|
+#define _FP_NANFRAC_S _FP_QNANBIT_S
|
|
|
|
|
+#define _FP_NANFRAC_D _FP_QNANBIT_D
|
|
|
|
|
+#define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0
|
|
|
|
|
+
|
|
|
|
|
+#endif
|
|
|
|
|
+
|
|
|
|
|
+#if __riscv_xlen == 64
|
|
|
|
|
+typedef int TItype __attribute__ ((mode (TI)));
|
|
|
|
|
+typedef unsigned int UTItype __attribute__ ((mode (TI)));
|
|
|
|
|
+#define TI_BITS (__CHAR_BIT__ * (int)sizeof(TItype))
|
|
|
|
|
+#endif
|
|
|
|
|
+
|
|
|
|
|
+/* The type of the result of a floating point comparison. This must
|
|
|
|
|
+ match __libgcc_cmp_return__ in GCC for the target. */
|
|
|
|
|
+typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__)));
|
|
|
|
|
+#define CMPtype __gcc_CMPtype
|
|
|
|
|
+
|
|
|
|
|
+#define _FP_NANSIGN_S 0
|
|
|
|
|
+#define _FP_NANSIGN_D 0
|
|
|
|
|
+#define _FP_NANSIGN_Q 0
|
|
|
|
|
+
|
|
|
|
|
+#define _FP_KEEPNANFRACP 0
|
|
|
|
|
+#define _FP_QNANNEGATEDP 0
|
|
|
|
|
+
|
|
|
|
|
+#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
|
|
|
|
|
+ do { \
|
|
|
|
|
+ R##_s = _FP_NANSIGN_##fs; \
|
|
|
|
|
+ _FP_FRAC_SET_##wc(R,_FP_NANFRAC_##fs); \
|
|
|
|
|
+ R##_c = FP_CLS_NAN; \
|
|
|
|
|
+ } while (0)
|
|
|
|
|
+
|
|
|
|
|
+#define _FP_DECL_EX int _frm __attribute__ ((unused));
|
|
|
|
|
+#define FP_ROUNDMODE _frm
|
|
|
|
|
+
|
|
|
|
|
+#define FP_RND_NEAREST 0x0
|
|
|
|
|
+#define FP_RND_ZERO 0x1
|
|
|
|
|
+#define FP_RND_PINF 0x3
|
|
|
|
|
+#define FP_RND_MINF 0x2
|
|
|
|
|
+
|
|
|
|
|
+#define FP_EX_INVALID 0x10
|
|
|
|
|
+#define FP_EX_OVERFLOW 0x04
|
|
|
|
|
+#define FP_EX_UNDERFLOW 0x02
|
|
|
|
|
+#define FP_EX_DIVZERO 0x08
|
|
|
|
|
+#define FP_EX_INEXACT 0x01
|
|
|
|
|
+
|
|
|
|
|
+#define _FP_TININESS_AFTER_ROUNDING 1
|
|
|
|
|
+
|
|
|
|
|
+#ifdef __riscv_flen
|
|
|
|
|
+#define FP_INIT_ROUNDMODE \
|
|
|
|
|
+do { \
|
|
|
|
|
+ __asm__ volatile ("frrm %0" : "=r" (_frm)); \
|
|
|
|
|
+} while (0)
|
|
|
|
|
+
|
|
|
|
|
+#define FP_HANDLE_EXCEPTIONS \
|
|
|
|
|
+do { \
|
|
|
|
|
+ if (__builtin_expect (_fex, 0)) \
|
|
|
|
|
+ __asm__ volatile ("csrs fflags, %0" : : "rK" (_fex)); \
|
|
|
|
|
+} while (0)
|
|
|
|
|
+#else
|
|
|
|
|
+#define FP_INIT_ROUNDMODE _frm = FP_RND_NEAREST
|
2015-07-17 23:35:54 +02:00
|
|
|
|
+#endif
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+
|
|
|
|
|
+#define __LITTLE_ENDIAN 1234
|
|
|
|
|
+#define __BIG_ENDIAN 4321
|
|
|
|
|
+
|
|
|
|
|
+#define __BYTE_ORDER __LITTLE_ENDIAN
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+/* Define ALIASNAME as a strong alias for NAME. */
|
|
|
|
|
+# define strong_alias(name, aliasname) _strong_alias(name, aliasname)
|
|
|
|
|
+# define _strong_alias(name, aliasname) \
|
|
|
|
|
+ extern __typeof (name) aliasname __attribute__ ((alias (#name)));
|
|
|
|
|
diff --git original-gcc/libgcc/config/riscv/t-elf gcc-6.3.0/libgcc/config/riscv/t-elf
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..01d5ebaa417
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/libgcc/config/riscv/t-elf
|
|
|
|
|
@@ -0,0 +1,6 @@
|
|
|
|
|
+LIB2ADD += $(srcdir)/config/riscv/save-restore.S \
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+ $(srcdir)/config/riscv/muldi3.S \
|
|
|
|
|
+ $(srcdir)/config/riscv/multi3.S \
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+ $(srcdir)/config/riscv/div.S \
|
|
|
|
|
+ $(srcdir)/config/riscv/atomic.c \
|
|
|
|
|
+
|
|
|
|
|
diff --git original-gcc/libgcc/config/riscv/t-elf32 gcc-6.3.0/libgcc/config/riscv/t-elf32
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..f3751234d55
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/libgcc/config/riscv/t-elf32
|
|
|
|
|
@@ -0,0 +1 @@
|
|
|
|
|
+LIB2FUNCS_EXCLUDE += _divsi3 _modsi3 _udivsi3 _umodsi3 _mulsi3 _muldi3
|
|
|
|
|
diff --git original-gcc/libgcc/config/riscv/t-elf64 gcc-6.3.0/libgcc/config/riscv/t-elf64
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..f3751234d55
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/libgcc/config/riscv/t-elf64
|
|
|
|
|
@@ -0,0 +1 @@
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+LIB2FUNCS_EXCLUDE += _divsi3 _modsi3 _udivsi3 _umodsi3 _mulsi3 _muldi3
|
2016-10-29 17:37:42 +02:00
|
|
|
|
diff --git original-gcc/libgcc/config/riscv/t-softfp32 gcc-6.3.0/libgcc/config/riscv/t-softfp32
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..1bd51e803d1
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/libgcc/config/riscv/t-softfp32
|
|
|
|
|
@@ -0,0 +1,26 @@
|
|
|
|
|
+ABI_SINGLE:=$(findstring __riscv_float_abi_single,$(shell $(gcc_compile_bare) -dM -E - </dev/null))
|
|
|
|
|
+ABI_DOUBLE:=$(findstring __riscv_float_abi_double,$(shell $(gcc_compile_bare) -dM -E - </dev/null))
|
|
|
|
|
+ABI_QUAD:=$(findstring __riscv_float_abi_quad,$(shell $(gcc_compile_bare) -dM -E - </dev/null))
|
|
|
|
|
+
|
|
|
|
|
+softfp_int_modes := si di
|
|
|
|
|
+softfp_exclude_libgcc2 := n
|
|
|
|
|
+
|
|
|
|
|
+ifndef ABI_QUAD
|
|
|
|
|
+ifdef ABI_DOUBLE
|
|
|
|
|
+
|
|
|
|
|
+softfp_float_modes := tf
|
|
|
|
|
+softfp_extensions := sftf dftf
|
|
|
|
|
+softfp_truncations := tfsf tfdf
|
|
|
|
|
+
|
|
|
|
|
+else
|
|
|
|
|
+
|
|
|
|
|
+softfp_float_modes := df tf
|
|
|
|
|
+softfp_extensions := sfdf sftf dftf
|
|
|
|
|
+softfp_truncations := dfsf tfsf tfdf
|
|
|
|
|
+
|
|
|
|
|
+ifndef ABI_SINGLE
|
|
|
|
|
+softfp_float_modes += sf
|
|
|
|
|
+endif
|
|
|
|
|
+
|
|
|
|
|
+endif
|
|
|
|
|
+endif
|
|
|
|
|
diff --git original-gcc/libgcc/config/riscv/t-softfp64 gcc-6.3.0/libgcc/config/riscv/t-softfp64
|
|
|
|
|
new file mode 100644
|
|
|
|
|
index 00000000000..75870951202
|
|
|
|
|
--- /dev/null
|
|
|
|
|
+++ gcc-6.3.0/libgcc/config/riscv/t-softfp64
|
|
|
|
|
@@ -0,0 +1,3 @@
|
|
|
|
|
+include $(srcdir)/config/riscv/t-softfp32
|
2016-04-02 04:50:59 +02:00
|
|
|
|
+
|
2016-10-29 17:37:42 +02:00
|
|
|
|
+softfp_int_modes += ti
|